2 Unit 2
Addition
Topic A: Addition
Addition puts amounts together. The answer of addition is called the sum or the total.
The plus sign + means to add.
+=
3+2=5says “three plus two equals five”
or “three and two is five”
The sum is 5.
You can count on your fingers to get the answers to addition questions, but counting takes too long.
Addition facts are a tool that you use to do adding questions.
Exercise OneCheck out your addition facts by doing this exercise as
quickly as possible without counting on your fingers. The highest total or sum (what the numbers add up to) for these number facts is 9. Check your work using the answer key at the end of the exercise. Then, make a list of any addition facts you do not know or which are slow – practice them.
|
a)2 + 4 |
b)3 + 1 |
c)1 + 2 |
d)7 + 0 |
|
6 |
4 |
|
|
|
e)0 |
f)1 |
g)5 |
h)3 |
|
+ 4 |
+ 4 |
+ 2 |
+ 3 |
|
i)2 |
j)6 |
k)4 |
l)3 |
|
+ 0 |
+ 3 |
+ 4 |
+ 0 |
Answers to Exercise One
|
m)5 |
n)1 |
o)0 |
p)8 |
|
+ 3 |
+ 6 |
+ 5 |
+ 1 |
|
q)2 |
r)1 |
s)1 |
t)2 |
|
+ 6 |
+ 0 |
+ 5 |
+ 2 |
|
u)3 |
v)2 |
w)5 |
x)1 |
|
+ 2 |
+ 1 |
+ 4 |
+ 7 |
|
y)9 |
z)5 |
aa) |
0 |
bb) |
4 |
|
+ 0 |
+ 1 |
|
+ 3 |
|
+ 1 |
|
a) |
6 |
b) |
4 |
c) |
3 |
d) |
7 |
e) |
4 |
f) |
5 |
g) |
7 |
|
h) |
6 |
i) |
2 |
j) |
9 |
k) |
8 |
l) |
3 |
m) |
8 |
n) |
7 |
|
o) |
5 |
p) |
9 |
q) |
8 |
r) |
1 |
s) |
6 |
t) |
4 |
u) |
5 |
|
v) |
3 |
w) |
9 |
x) |
8 |
y) |
9 |
z) |
6 |
aa) |
3 |
bb) |
5 |
Exercise TwoCheck out your addition facts by doing this exercise as
quickly as possible without counting on your fingers. The highest total or sum (what the numbers add up to) for these number facts is 9. Check your work using the answer key at the end of the exercise. Then, make a list of any addition facts you do not know or which are slow – practice them.
|
a)4 + 5 |
b)1 + 8 |
c)8 + 0 |
d)4 + 3 |
|
9 |
9 |
|
|
|
e)0 |
f)2 |
g)7 |
h)0 |
|
+ 0 |
+ 3 |
+ 1 |
+ 9 |
|
i)4 |
j)0 |
k)0 |
l)1 |
|
+ 2 |
+ 2 |
+ 7 |
+ 1 |
|
m)2 |
n)0 |
o)6 |
p)0 |
|
+ 7 |
+ 1 |
+ 2 |
+ 6 |
|
q)1 |
r)3 |
s)2 |
t)0 |
|
+ 3 |
+ 5 |
+ 5 |
+ 8 |
|
u)3 |
v)4 |
w)3 |
x)5 |
|
+ 4 |
+ 0 |
+ 6 |
+ 0 |
|
y)6 |
z)6 |
aa) |
7 |
bb) |
0 |
|
+ 1 |
+ 0 |
|
+2 |
|
+ 3 |
|
a) |
9 |
b) |
9 |
c) |
8 |
d) |
7 |
e) |
0 |
f) |
5 |
g) |
8 |
|
h) |
9 |
i) |
6 |
j) |
2 |
k) |
7 |
l) |
2 |
m) |
9 |
n) |
1 |
|
o) |
8 |
p) |
6 |
q) |
4 |
r) |
8 |
s) |
7 |
t) |
8 |
u) |
7 |
|
v) |
4 |
w) |
9 |
x) |
5 |
y) |
7 |
z) |
6 |
aa) |
9 |
bb) |
3 |
Answers to Exercise Two
Exercise ThreeCheck out your addition facts by doing this exercise as
quickly as possible without counting on your fingers. The highest total or sum (what the numbers add up to) for these number facts is 9. Check your work using the answer key at the end of the exercise. Then, make a list of any addition facts you do not know or which are slow – practice them.
|
a)3 + 6 |
b)4 + 5 |
c)4 + 1 |
d)9 + 0 |
|
9 |
9 |
|
|
|
e)2 |
f)3 |
g)0 |
h)5 |
|
+ 2 |
+ 4 |
+ 6 |
+ 2 |
|
i)4 |
j)1 |
k)2 |
l)0 |
|
+ 0 |
+ 8 |
+ 3 |
+ 5 |
|
m)0 |
n)1 |
o)4 |
p)6 |
|
+ 0 |
+ 2 |
+ 3 |
+ 1 |
|
q)6 |
r)3 |
s)2 |
t)0 |
|
+ 2 |
+ 2 |
+ 7 |
+ 7 |
|
u)5 |
v)1 |
w)5 |
x)3 |
|
+ 4 |
+ 7 |
+ 3 |
+ 3 |
|
y)1 |
z)2 |
aa) |
0 |
bb) |
1 |
|
+ 4 |
+ 4 |
|
+ 4 |
|
+ 3 |
|
cc) |
1 |
dd) |
0 |
ee) |
8 |
ff) |
3 |
|
|
+ 6 |
|
+ 8 |
|
+ 1 |
|
+ 5 |
|
gg) |
3 |
hh) |
6 |
ii)3 |
jj) |
7 |
|
|
+ 0 |
|
+ 3 |
+ 1 |
|
+ 1 |
|
kk) |
2 |
ll) |
4 |
mm) |
2 |
nn) |
3 |
|
|
+ 6 |
|
+ 4 |
|
+ 5 |
|
+ 4 |
|
a) |
9 |
b) |
9 |
c) |
5 |
d) |
9 |
e) |
4 |
f) |
7 |
g) |
6 |
|
h) |
7 |
i) |
4 |
j) |
9 |
k) |
5 |
l) |
5 |
m) |
0 |
n) |
3 |
|
o) |
7 |
p) |
7 |
q) |
8 |
r) |
5 |
s) |
9 |
t) |
7 |
u) |
9 |
|
v) |
8 |
w) |
8 |
x) |
6 |
y) |
5 |
z) |
6 |
aa) |
4 |
bb) |
4 |
|
cc) |
7 |
dd) |
8 |
ee) |
9 |
ff) |
8 |
gg) |
3 |
hh) |
9 |
ii) |
4 |
Answers to Exercise Threejj) 8kk) 8ll) 8mm) 7nn) 7
Exercise FourCheck out your addition facts by doing this exercise as
quickly as possible without counting on your fingers. The highest total or sum (what the numbers add up to) for these number facts is 12. Check your work using the answer key at the end of the exercise. Then, make a list of any addition facts you do not know or which are slow – practice them.
|
a)6 + 5 |
b)8 + 2 |
c)5 + 3 |
d)5 + 7 |
|
11 |
10 |
|
|
|
e)3 |
f)2 |
g)7 |
h)3 |
|
+ 4 |
+ 6 |
+ 3 |
+ 9 |
Answers to Exercise Four
|
i)9 |
j)8 |
k)4 |
l)1 |
|
+ 3 |
+ 1 |
+ 5 |
+ 9 |
|
m)2 |
n)3 |
o)6 |
p)5 |
|
+ 7 |
+ 5 |
+ 6 |
+ 6 |
|
q)4 |
r)5 |
s)8 |
t)5 |
|
+ 6 |
+ 8 |
+ 4 |
+ 2 |
|
u)3 |
v)2 |
w)2 |
x)7 |
|
+ 7 |
+ 8 |
+ 9 |
+ 1 |
|
a) |
11 |
b) |
10 |
c) |
8 |
d) |
12 |
e) |
7 |
f) |
8 |
g) |
10 |
|
h) |
12 |
i) |
12 |
j) |
9 |
k) |
9 |
l) |
10 |
m) |
9 |
n) |
8 |
|
o) |
12 |
p) |
11 |
q) |
10 |
r) |
11 |
s) |
12 |
t) |
7 |
u) |
10 |
|
v) |
10 |
w) |
11 |
x) |
8 |
|
|
|
|
|
|
|
|
Exercise FiveCheck out your addition facts by doing this exercise as
quickly as possible without counting. The highest total or sum
(what the numbers add up to) for these number facts is 12. Check your work using the answer key at the end of the exercise. Then, make a list of any addition facts you do not know or which are slow – practice them.
|
a)9 |
b)6 |
c)4 |
d)2 |
|
+ 2 |
+ 4 |
+ 7 |
+ 5 |
|
e)8 |
f)7 |
g)6 |
h)5 |
|
+ 3 |
+ 4 |
+ 3 |
+ 5 |
|
i)9 |
j)7 |
k)4 |
l)6 |
|
+ 1 |
+ 5 |
+ 8 |
+ 2 |
|
m)7 |
n)1 |
o)3 |
p)5 |
|
+ 2 |
+ 7 |
+ 6 |
+ 4 |
|
q)4 |
r)7 |
s)9 |
t)4 |
|
+ 7 |
+ 6 |
+ 2 |
+ 8 |
|
u)6 |
v)3 |
w)8 |
x)4 |
|
+ 6 |
+ 6 |
+ 2 |
+ 5 |
|
Answers to Exercise Five |
|||||||||||||
|
a) |
11 |
b) |
10 |
c) |
11 |
d) |
7 |
e) |
11 |
f) |
11 |
g) |
9 |
|
h) |
10 |
i) |
10 |
j) |
12 |
k) |
12 |
l) |
8 |
m) |
9 |
n) |
8 |
|
o) |
9 |
p) |
9 |
q) |
11 |
r) |
13 |
s) |
11 |
t) |
12 |
u) |
12 |
|
v) |
9 |
w) |
10 |
x) |
9 |
|
|
|
|
|
|
|
|
Exercise SixCheck out your addition facts by doing this exercise as
quickly as possible without counting. The highest total or sum
(what the numbers add up to) for these number facts is 12. Check your work using the answer key at the end of the exercise. Then, make a list of any addition facts you do not know or which are slow – practice them.
|
a)3 |
b)5 |
c)4 |
d)4 |
|
+ 9 |
+ 3 |
+ 6 |
+ 3 |
|
e)6 |
f)2 |
g)9 |
h)7 |
|
+ 5 |
+ 8 |
+ 1 |
+ 5 |
|
i)3 |
j)5 |
k)6 |
l)2 |
|
+ 8 |
+ 2 |
+ 6 |
+ 9 |
|
m)4 |
n)3 |
o)3 |
p)5 |
|
+ 6 |
+ 9 |
+ 7 |
+ 7 |
|
q)8 |
r)8 |
s)1 |
t)6 |
|
+ 3 |
+ 4 |
+ 9 |
+ 2 |
|
u)2 |
v)5 |
w)9 |
x)2 |
|
+ 9 |
+ 6 |
+ 3 |
+ 6 |
|
y)3 |
z)6 |
aa) |
6 |
bb) |
7 |
|
+ 5 |
+ 4 |
|
+ 5 |
|
+ 3 |
|
cc) |
3 |
dd) |
6 |
ee) |
7 |
ff) |
5 |
|
|
+ 4 |
|
+ 3 |
|
+ 4 |
|
+ 5 |
|
a) |
12 |
b) |
8 |
c) |
10 |
d) |
7 |
e) |
11 |
f) |
10 |
g) |
10 |
|
h) |
12 |
i) |
11 |
j) |
7 |
k) |
12 |
l) |
11 |
m) |
10 |
n) |
12 |
|
o) |
10 |
p) |
12 |
q) |
11 |
r) |
12 |
s) |
10 |
t) |
8 |
u) |
11 |
|
v) |
11 |
w) |
12 |
x) |
8 |
y) |
8 |
z) |
10 |
aa) |
11 |
bb) |
10 |
|
cc) |
7 |
dd) |
9 |
ee) |
11 |
ff) |
10 |
|
|
|
|
|
|
Answers to Exercise Six
Need more practice? Practice your addition facts using a set of dice. Roll the dice and add the amounts on the dice.
Exercise SevenCheck out your addition facts by doing this exercise as
quickly as possible without counting. The highest total or sum
(what the numbers add up to) for these number facts is 20. Check your work using the answer key at the end of the exercise. Then, make a list of any addition facts you do not know or which are slow – practice them.
|
a)7 + 6 |
b)5 + 9 |
c)10 + 3 |
d)5 + 7 |
|
13 |
14 |
|
|
|
e)7 |
f)10 |
g)8 |
h)6 |
|
+ 9 |
+ 9 |
+ 7 |
+ 4 |
|
i)5 |
j)8 |
k)8 |
l)10 |
|
+ 10 |
+ 9 |
+ 2 |
+ 6 |
|
m)7 |
n)6 |
o)6 |
p)10 |
|
+ 4 |
+ 10 |
+ 7 |
+ 4 |
Answers to Exercise Seven
|
q)9 |
r)2 |
s)9 |
t)5 |
|
+ 8 |
+ 10 |
+ 7 |
+ 8 |
|
u)10 |
v)5 |
w)8 |
x)4 |
|
+ 2 |
+ 6 |
+ 5 |
+ 10 |
|
y)9 |
z)8 |
aa) |
9 |
bb) |
9 |
|
+ 6 |
+ 4 |
|
+ 10 |
|
+ 4 |
|
a) |
13 |
b) |
14 |
c) |
13 |
d) |
12 |
e) |
16 |
f) |
19 |
g) |
15 |
|
h) |
10 |
i) |
15 |
j) |
17 |
k) |
10 |
l) |
16 |
m) |
11 |
n) |
16 |
|
o) |
13 |
p) |
14 |
q) |
17 |
r) |
12 |
s) |
16 |
t) |
13 |
u) |
12 |
|
v) |
11 |
w) |
13 |
x) |
14 |
y) |
15 |
z) |
12 |
aa) |
19 |
bb) |
13 |
Exercise EightCheck out your addition facts by doing this exercise as
quickly as possible without counting. The highest total or sum (what the numbers add up to) for these number facts is 20. The highest total or sum (what the numbers add up to) for these number facts is 20. Then, make a list of any addition facts you do not know or which are slow – practice them.
|
a)10 |
b)7 |
c)10 |
d)7 |
|
+ 1 |
+ 7 |
+ 8 |
+ 8 |
|
e)4 |
f)1 |
g)4 |
h)3 |
|
+ 6 |
+ 10 |
+ 7 |
+ 10 |
|
i)0 |
j)3 |
k)10 |
l)6 |
|
+ 7 |
+ 9 |
+ 7 |
+ 4 |
|
m)0 |
n)6 |
o)9 |
p)10 |
|
+ 10 |
+ 9 |
+ 9 |
+ 5 |
|
q)4 |
r)2 |
s)10 |
t)6 |
|
+ 8 |
+ 9 |
+ 10 |
+ 6 |
Answers to Exercise Eight
|
u)9 |
v)7 |
w)9 |
x)8 |
|
+ 3 |
+ 4 |
+ 1 |
+ 8 |
|
y)7 |
a)9 |
aa) |
8 |
bb) |
9 |
|
+ 10 |
+ 2 |
|
+ 6 |
|
+ 5 |
|
a) |
11 |
b) |
14 |
c) |
18 |
d) |
15 |
e) |
10 |
f) |
11 |
g) |
11 |
|
h) |
13 |
i) |
7 |
f) |
12 |
k) |
17 |
l) |
10 |
m) |
10 |
n) |
15 |
|
o) |
18 |
p) |
15 |
q) |
12 |
r) |
11 |
s) |
20 |
t) |
12 |
u) |
12 |
|
v) |
11 |
w) |
10 |
x) |
16 |
y) |
17 |
z) |
11 |
aa) |
14 |
bb) |
14 |
Exercise NineCheck out your addition facts by doing this exercise as quickly as
possible without counting. The highest total or sum (what the numbers add up to) for these number facts is 20. Then, make a list of any addition facts you do not know or which are slow – practice them.
|
a)4 |
b)7 |
c)5 |
d)3 |
|
+ 9 |
+ 2 |
+ 5 |
+ 6 |
|
e)6 |
f)8 |
g)6 |
h)6 |
|
+ 10 |
+ 5 |
+ 9 |
+ 6 |
|
i)3 |
j)9 |
k)2 |
l)5 |
|
+ 7 |
+ 3 |
+ 8 |
+10 |
|
m)5 |
n)10 |
o)8 |
p)2 |
|
+ 5 |
+ 3 |
+ 8 |
+ 10 |
|
q)7 |
r)10 |
s)5 |
t)1 |
|
+ 9 |
+ 8 |
+ 8 |
+ 10 |
|
u)7 |
v)10 |
w)7 |
x)6 |
|
+ 6 |
+ 10 |
+ 7 |
+ 5 |
|
y)5 |
z)9 |
aa) |
10 |
bb) |
8 |
|
+ 7 |
+ 9 |
|
+ 0 |
|
+ 2 |
|
a) |
13 |
b) |
9 |
c) |
10 |
d) |
9 |
e) |
16 |
f) |
13 |
g) |
15 |
|
h) |
12 |
i) |
10 |
j) |
12 |
k) |
10 |
l) |
15 |
m) |
10 |
n) |
13 |
|
o) |
16 |
p) |
12 |
q) |
16 |
r) |
18 |
s) |
13 |
t) |
11 |
u) |
13 |
|
v) |
20 |
w) |
14 |
x) |
11 |
y) |
12 |
z) |
18 |
aa) |
10 |
bb) |
10 |
Answers to Exercise Nine
Exercise TenCheck out your addition facts by doing this exercise as
quickly as possible without counting. The highest total or
sum (what the numbers add up to) for these number facts is
20. Then, make a list of any addition facts you do not know or which are slow – practice them.
|
a)7 |
b)10 |
c)8 |
d)2 |
|
+ 10 |
+ 4 |
+ 7 |
+ 9 |
|
e)4 |
f)3 |
g)7 |
h)3 |
|
+ 6 |
+ 10 |
+ 4 |
+ 8 |
|
i)8 |
j)7 |
k)5 |
l)9 |
|
+ 3 |
+ 8 |
+ 9 |
+ 5 |
|
m)8 |
n)10 |
o)4 |
o)8 |
|
+ 6 |
+ 9 |
+ 7 |
+ 9 |
|
q)7 |
r)9 |
s)1 |
t)6 |
|
+ 5 |
+ 10 |
+ 9 |
+ 7 |
|
u)9 |
v)6 |
w)6 |
x)7 |
|
+ 4 |
+ 1 |
+ 0 |
+ 2 |
|
y)3 |
z)0 |
aa) |
6 |
bb) |
5 |
|
+ 4 |
+ 8 |
|
+ 4 |
|
+ 8 |
|
cc) |
2 |
dd) |
7 |
ee) |
0 |
ff) |
9 |
|
|
+ 5 |
|
+ 6 |
|
+ 3 |
|
+ 7 |
|
h) |
11 |
i) |
11 |
j) |
15 |
k) |
14 |
l) |
14 |
m) |
14 |
n) |
19 |
|
o) |
11 |
p) |
17 |
q) |
12 |
r) |
19 |
s) |
10 |
t) |
13 |
u) |
13 |
|
v) |
7 |
w) |
6 |
x) |
9 |
y) |
7 |
z) |
8 |
aa) |
10 |
bb) |
13 |
|
cc) |
7 |
dd) |
13 |
ee) |
3 |
ff) |
16 |
|
|
|
|
|
|
Answers to Exercise Tena) 17b) 14c) 15d) 11e) 10f) 13g) 11
Exercise ElevenCheck out your addition facts by doing this exercise as
quickly as possible without counting. The highest total or sum
(what the numbers add up to) for these number facts is 20. Check your work using the answer key at the end of the exercise. Then, make a list of any addition facts you do not know or which are slow – practice them.
|
a)7 |
b)4 |
c)3 |
d)4 |
|
+ 2 |
+ 4 |
+ 5 |
+ 6 |
|
e)8 |
f)9 |
g)1 |
h)0 |
|
+ 1 |
+ 6 |
+ 3 |
+ 2 |
|
i)4 |
j)9 |
k)4 |
l)8 |
|
+ 9 |
+ 2 |
+ 1 |
+ 8 |
|
m)1 |
n)7 |
o)2 |
p)9 |
|
+ 5 |
+ 3 |
+ 2 |
+ 5 |
|
q)6 |
r)6 |
s)3 |
t)4 |
|
+ 1 |
+ 0 |
+ 2 |
+ 8 |
|
u)5 |
v)3 |
w)9 |
x)3 |
|
+ 5 |
+ 6 |
+ 8 |
+ 9 |
|
y)2 |
z)1 |
aa) |
2 |
bb) |
6 |
|
+ 3 |
+ 9 |
|
+ 8 |
|
+ 6 |
|
cc) |
5 |
dd) |
6 |
ee) |
4 |
ff) |
1 |
|
|
+ 4 |
|
+ 8 |
|
+ 5 |
|
+ 7 |
|
gg) |
5 |
hh) |
4 |
ii)3 |
jj) |
7 |
|
|
+ 6 |
|
+ 0 |
+ 5 |
|
+ 2 |
Answers to Exercise Eleven
|
a) |
9 |
b) |
8 |
c) |
8 |
d) |
10 |
e) |
9 |
f) |
15 |
g) |
4 |
|
h) |
2 |
i) |
13 |
j) |
11 |
k) |
5 |
l) |
16 |
m) |
6 |
n) |
10 |
|
o) |
4 |
p) |
14 |
q) |
7 |
r) |
6 |
s) |
5 |
t) |
12 |
u) |
10 |
|
v) |
9 |
w) |
17 |
x) |
12 |
y) |
5 |
z) |
10 |
aa) |
10 |
bb) |
12 |
|
cc) |
9 |
dd) |
14 |
ee) |
9 |
ff) |
8 |
gg) |
11 |
hh) |
4 |
ii) |
8 |
|
jj) |
9 |
|
|
|
|
|
|
|
|
|
|
|
|
Need some extra practice?Find a partner and play the following card game. You will use a regular deck of cards Take out the jacks, queens and kings. Shuffle the cards and deal them out. Do not look at your cards. Leave them in a pile in from of you. Each player flips over a card. Take turns adding the numbers on the cards. If the person whose turn it is gets the right answer that person gets to keep the cards. If the person whose turn it is gets the wrong answer the other player gets the cards. The person who collects all the cards is the winner. You could also set a time limit and the person with the most cards when time is up is the winner.
Exercise TwelveHere are some extra questions if you need more practice.
The highest total or sum (what the numbers add up to) for these number facts is 20. Check your work using the answer key at the end of the exercise.
|
a)6 + 7 |
b)8 + 3 |
c)4 + 2 |
d)8 + 7 |
|
13 |
11 |
|
|
|
e)1 |
f)6 |
g)5 |
h)2 |
|
+ 2 |
+ 4 |
+ 8 |
+ 5 |
|
i)7 |
j)0 |
k)9 |
l)7 |
|
+ 6 |
+ 3 |
+ 7 |
+ 2 |
|
m)4 |
n)3 |
o)4 |
p)8 |
|
+ 4 |
+ 5 |
+ 6 |
+ 1 |
|
q)9 |
r)1 |
s)0 |
t)4 |
|
+ 6 |
+ 3 |
+ 2 |
+ 9 |
|
u)9 |
v)4 |
w)8 |
x)1 |
|
+ 2 |
+ 1 |
+ 8 |
+ 5 |
|
y)7 |
z)2 |
aa) |
9 |
bb) |
6 |
|
+ 3 |
+ 2 |
|
+ 5 |
|
+ 1 |
|
cc) |
6 |
dd) |
3 |
ee) |
4 |
ff) |
5 |
|
|
+ 0 |
|
+ 2 |
|
+ 8 |
|
+ 5 |
|
gg) |
3 |
hh) |
9 |
ii)3 |
jj) |
2 |
|
|
+ 6 |
|
+ 8 |
+ 9 |
|
+ 3 |
|
kk) |
1 |
ll) |
2 |
mm) |
6 |
nn) |
5 |
|
|
+ 9 |
|
+ 8 |
|
+ 6 |
|
+ 4 |
|
oo) |
6 |
pp) |
4 |
qq) |
1 |
rr) |
5 |
|
|
+ 8 |
|
+ 5 |
|
+ 7 |
|
+ 6 |
Answers to Exercise Twelve
|
a) 13 |
b) |
11 |
c) |
6 |
d) |
15 |
e) |
3 |
f) |
10 |
g) |
13 |
|
|
h) 7 |
i) |
13 |
j) |
3 |
k) |
16 |
l) |
9 |
m) |
8 |
n) |
8 |
|
|
o) 10 |
p) |
9 |
q) |
15 |
r) |
4 |
s) |
2 |
t) |
13 |
u) |
11 |
|
|
v)5 |
w) |
16 |
x) |
6 |
y) |
10 |
z) |
4 |
aa) |
14 |
bb) |
7 |
|
|
cc) 6 |
dd) |
5 |
ee) |
12 |
ff) |
10 |
gg) |
9 |
hh) |
17 |
ii) |
12 |
|
|
jj) |
5 |
kk) |
10 |
ll) |
10 |
mm) 12 |
nn) |
9 |
oo) |
14 |
pp) |
9 |
|
|
qq) |
8 |
rr) |
11 |
|
|
|
|
|
|
|
|
|
|
Adding Across
So far you have only been adding numbers when they are up and down or vertical.
Example:4
+ 5
9
Another way to add numbers is across or horizontally. Example:4 + 5 = 9
In math, sometimes you will need to work from left to right.
Exercise ThirteenPractice adding across or horizontally. The highest total or
sum (what the numbers add up to) for these number facts is 20. Check your work using the answer key at the end of the exercise.
a)10 + 0 =b)2 + 2 =
|
c) |
5 |
+ |
3 |
= |
d) |
1 |
+ |
1 = |
|
e) |
8 |
+ |
4 |
= |
f) |
7 |
+ |
1 = |
|
g) |
0 |
+ |
4 |
= |
h) |
6 |
+ |
3 = |
|
i) |
3 |
+ |
2 |
= |
j) |
1 |
+ |
10 = |
|
k) |
9 |
+ |
3 |
= |
l) |
4 |
+ |
9 = |
|
m) |
3 |
+ |
7 |
= |
n) |
4 |
+ |
8 = |
o)8 + 0 =p)6 + 4 =
q)4 + 1 =r)7 + 2 =
Answers to Exercise Thirteen
s)10 + 10 =t)6 + 5 =
|
a) |
10 |
b) |
4 |
c) |
8 |
d) |
2 |
e) |
12 |
f) |
8 |
g)4 |
|
h) |
9 |
i) |
5 |
j) |
11 |
k) |
12 |
l) |
13 |
m) |
10 |
n)12 |
|
o) |
8 |
p) |
10 |
q) |
5 |
r) |
9 |
s) |
20 |
t) |
11 |
|
Exercise FourteenPractice adding across or horizontally. The highest
total or sum (what the numbers add up to) for these number facts is 20. Check your work using the answer key at the end of the exercise.
a)5 + 10 =b)0 + 0 =
c)3 + 8 =d)8 + 3 =
e)9 + 5 =f)6 + 2 =
g)9 + 0 =h)2 + 9 =
i)4 + 7 =j)8 + 2 =
k)3 + 6 =l)9 + 4 =
m)0 + 2 =n)5 + 2 =
o)1 + 3 =p)4 + 2 =
q)10 + 3 =r)5 + 4 =
s)8 + 5 =t)6 + 6 =
|
Answers to Exercise Fourteen |
||||||||||||
|
a) |
15 |
b) |
0 |
c) |
11 |
d) |
11 |
e) |
14 |
f) |
8 |
g)9 |
|
h) |
11 |
i) |
11 |
j) |
10 |
k) |
9 |
l) |
13 |
m) |
2 |
n)7 |
|
o) |
4 |
p) |
6 |
q) |
13 |
r) |
9 |
s) |
13 |
t) |
12 |
|
Exercise FifteenPractice adding across or horizontally. The highest
total or sum (what the numbers add up to) for these number facts is 20. Check your work using the answer key at the end of the exercise.
a)9 + 6 =b)8 + 9 =
c)9 + 9 =d)2 + 3 =
e)7 + 3 =f)10 + 8 =
g)9 + 7 =h)8 + 8 =
i)8 + 10 =j)3 + 9 =
k)9 + 2 =l)4 + 4 =
m)6 + 8 =n)2 + 7 =
o)5 + 7 =p)3 + 3 =
q)7 + 0 =r)5 + 8 =
s)10 + 8 =t)9 + 8 =
|
Answers to Exercise Fifteen |
||||||||||||
|
a) |
15 |
b) |
17 |
c) |
18 |
d) |
5 |
e) |
10 |
f) |
18 |
g)16 |
|
h) |
16 |
i) |
18 |
j) |
12 |
k) |
11 |
l) |
8 |
m) |
14 |
n)9 |
|
o) |
12 |
p) |
6 |
q) |
7 |
r) |
13 |
s) |
18 |
t) |
17 |
|
Word Problems
Learning addition facts is very important. Once you know them all, you can use them to solve word problems.
Words such as more than, plus, added to, sum, total, have altogether and in all tell you to add the numbers together. Look for these words when reading word problems and underline them before trying to solve a problem. Circle the information that is given.
2 pages.
9 pages.
Example: Before lunch Jane read 2 pages. After lunch she read 9 pages. How many pages did she read in all?
Before lunch Jane read read in all?
After lunch she read
How many pages did she
You have circled 2 pages and 9 pages. This is the information you will use to find the answer.
You have underlined “in all”. These words tell you to add.
2 pages
+ 9 pages 11 pages
Jane read 11 pages in all.
Exercise OneSolve each of the following word problems. Be sure to
underline the words that tell you to add. Circlethe information that is given. Have your instructor check your underliningandcircling.
- Sven bought 7 cans of juice on Monday. He bought 9 cans of juice on Wednesday. How many cans of juice did he buy altogether?
- During the hockey game, Ewan took 8 shots from the blue line and 4 shots from in front of the net. How many shots did he take in all?
- Marlene noticed that there were 4 people in her math class. The next day 6 more people were in her math class. What is the total number of people in Marlene’s math class?
- The Blue Jays played two baseball games in a row. They got 10 runs in the first game and 7 runs in the second game. How many runs did they score altogether?
- Jaswinder had 9 apples in her grocery cart. She added 5 more different apples. How many apples did she have in total?
Answers to Exercise One
Enlai and his dad were fishing. Enlai caught 3 fish. His father caught 5 fish. How many fish did they have in total?
|
a)16 cans |
b) |
12 shots |
c) |
10 people |
|
d)17 runs |
e) |
14 apples |
f) |
8 fish |
Topic A: Self-TestMark/22Aim 19/22
Find the sums. Be sure to check your answers.12 marks
|
a)9 |
b)5 |
c)4 |
|
+ 6 |
+ 8 |
+ 2 |
|
d)7 |
e)3 |
f)1 |
|
+ 6 |
+ 5 |
+ 9 |
|
g)2 |
h)6 |
i)8 |
|
+ 3 |
+ 4 |
+ 1 |
|
j)9 |
k)7 |
l)5 |
|
+ 8 |
+ 4 |
+ 6 |
- Find the sums. Be sure to check your answers.4 marks
|
a) |
6 + 7 = |
b) |
3 + 8 |
= |
|
c) |
4 + 6 = |
d) |
8 + 5 |
= |
Solve each of the following word problems.6 marks Be sure to include the unit of measure in your answer.(2 marks each)
circle
Be sure toinformation and underline what is being asked.
- Paco worked 5 hours on Monday and 9 hours on Tuesday.How many hours did Paco work in total?
- In the park, Ming-Mai counted 6 robins in the morning. In the afternoon, she counted 8 more robins. How many robins in all did Ming-Mai count?
- Omari bought 3 bananas on Monday. He bought 5 bananas on Tuesday. How many bananas did he buy altogether?
Answers to Topic A Self-TestA.C.a) 14 hoursb) 14 robinsc) 8 bananas
|
a) |
15 |
b) |
13 |
c) |
6 |
d) |
13 |
e)8 |
f)10 |
g)5 |
|
h) |
10 |
i) |
9 |
j) |
17 |
k) |
11 |
l)11 |
|
|
|
B. a) |
13 |
b) |
11 |
c) |
10 |
d) |
13 |
|
|
|
Topic B: Addition of Three or More Numbers
To add three or more numbers together, use the following steps.
Step 1:Add the first two numbers together.
Step 2:Add that sum to the next number.
Step 3:Add that sum to the next number (if needed).
Example A:6
1
+ 3
Step 1: Add the first two numbers together.
6
+ 1
7
Step 2: Add that sum to the next number.
|
|
7 + 3 10 |
|
The sum of |
6 |
|
|
1 + 3 10 |
Example B:4
5
+ 7
Step 1: Add the first two numbers together.
4
+ 5
9
Step 2: Add that sum to the third number.
|
|
|
9 + 7 16 |
|
The sum of |
4 |
|
|
|
5 + 7 16 |
|
|
Example C: |
|
1 |
|
|
|
3 |
|
|
|
4 + 5 |
Step 1: Add the first two numbers together.
1
+ 3
4
Step 2: Add that sum to the third number.
4
+ 4
8
Step 3: Add that sum to the fourth number.
|
|
8 + 5 13 |
|
The sum of |
1 |
|
|
3 |
|
|
4 + 5 13 |
Exercise OneFind the sums. Check your work using the answer key at the end of the exercise.
|
a)1 2 |
b)6 3 |
c)7 1 |
d)3 6 |
|
+ 5 |
+ 2 |
+ 6 |
+ 5 |
|
e)8 1 |
f)5 4 |
g)1 5 |
h)7 2 |
|
+ 4 |
+ 8 |
+ 7 |
+ 5 |
|
i)1 8 |
j)4 5 |
k)2 2 |
l)6 3 |
|
+ 3 |
+ 9 |
+ 8 |
+ 5 |
|
m)7 2 |
n)3 2 |
o)6 2 |
p)4 4 |
|
+ 5 |
+ 5 |
+ 5 |
+ 5 |
|
q)3 3 |
r)7 1 |
s)1 7 |
t)2 4 |
|
+ 9 |
+ 9 |
+ 5 |
+ 5 |
|
u)7 2 |
v)3 5 |
w)1 4 |
x)5 3 |
|
+ 8 |
+ 7 |
+ 8 |
+ 8 |
|
Answers to Exercise One |
|||||||||||||
|
a) |
8 |
b) |
11 |
c) |
14 |
d) |
14 |
e) |
13 |
f) |
17 |
g) |
13 |
|
h) |
14 |
i) |
12 |
j) |
18 |
k) |
12 |
l) |
14 |
m) |
14 |
n) |
10 |
|
o) |
13 |
p) |
13 |
q) |
15 |
r) |
17 |
s) |
13 |
t) |
11 |
u) |
17 |
|
v) |
15 |
w) |
13 |
x) |
16 |
|
|
|
|
|
|
|
|
Exercise TwoFind the sums. Check your work using the answer key at the end
of the exercise.
|
a)3 5 |
b)2 6 |
c)4 1 |
d)5 4 |
|
+ 7 |
+ 8 |
+ 9 |
+ 2 |
|
e)3 6 |
f)2 5 |
g)6 3 |
h)3 5 |
|
+ 4 |
+ 4 |
+ 2 |
+ 3 |
|
i)3 4 |
j)4 5 |
k)6 3 |
l)5 2 |
|
+ 7 |
+ 9 |
+ 2 |
+ 9 |
|
m)4 5 |
n)5 2 |
o)2 3 |
p)1 5 |
|
+ 7 |
+ 8 |
+ 8 |
+ 6 |
|
q)4 3 |
r)2 6 |
s)4 5 |
t)5 2 |
|
+ 5 |
+ 5 |
+ 3 |
+ 4 |
|
u)3 4 |
v)7 1 |
w)2 1 |
x)3 6 |
|
+ 7 |
+ 5 |
+ 9 |
+ 3 |
|
Answers to Exercise Two |
|||||||||||||
|
a) |
15 |
b) |
16 |
c) |
14 |
d) |
11 |
e) |
13 |
f) |
11 |
g) |
11 |
|
h) |
11 |
i) |
14 |
j) |
18 |
k) |
11 |
l) |
16 |
m) |
16 |
n) |
15 |
|
o) |
13 |
p) |
12 |
q) |
12 |
r) |
13 |
s) |
12 |
t) |
11 |
u) |
14 |
|
v) |
13 |
w) |
12 |
x) |
12 |
|
|
|
|
|
|
|
|
Exercise ThreeFind the sums. Check your work using the answer key at the
end of the exercise.
|
a)3 2 |
b)2 1 |
c)4 3 |
d)1 2 |
|
+ 8 |
+ 4 |
+ 1 |
+ 8 |
|
e)3 2 |
f)5 1 |
g)7 2 |
h)4 2 |
|
+ 2 |
+ 2 |
+ 8 |
+ 6 |
|
i)7 2 |
j)6 1 |
k)2 7 |
l)3 4 |
|
+ 7 |
+ 1 |
+ 6 |
+ 2 |
Answers to Exercise Three
|
m)3 4 |
n)7 1 |
o)2 6 |
p)3 1 |
|
+ 1 |
+ 9 |
+ 4 |
+ 2 |
|
q)5 1 |
r)4 2 |
s)3 4 |
t)8 1 |
|
+ 3 |
+ 6 |
+ 6 |
+ 7 |
|
u)2 5 |
v)6 3 |
w)2 7 |
x)6 3 |
|
+ 8 |
+ 1 |
+ 5 |
+ 4 |
|
a) |
13 |
b) |
7 |
c) |
8 |
d) |
11 |
e) |
7 |
f) |
8 |
g) |
17 |
|
h) |
12 |
i) |
16 |
j) |
8 |
k) |
15 |
l) |
9 |
m) |
8 |
n) |
17 |
|
o) |
12 |
p) |
6 |
q) |
9 |
r) |
12 |
s) |
13 |
t) |
16 |
u) |
15 |
|
v) |
10 |
w) |
14 |
x) |
13 |
|
|
|
|
|
|
|
|
Exercise FourFind the sums. Check your work using the answer key at the end
of the exercise.
|
a)1 3 |
b)2 3 |
c)4 3 |
d)3 1 |
|
4 |
4 |
2 |
5 |
|
+ 5 |
+ 6 |
+ 8 |
+ 6 |
|
e)2 2 |
f)3 3 |
g)2 1 |
h)1 2 |
|
3 |
1 |
2 |
4 |
|
+ 2 |
+ 2 |
+ 4 |
+ 6 |
|
i)2 4 |
j)3 2 |
k)2 1 |
l)3 1 |
|
1 |
3 |
4 |
4 |
|
+ 6 |
+ 3 |
+ 0 |
+ 1 |
|
m)3 2 |
n)3 5 |
o)6 1 |
p)4 3 |
|
3 |
1 |
2 |
2 |
|
+ 2 |
+ 6 |
+ 9 |
+ 1 |
|
q)1 4 |
r)4 2 |
s)3 4 |
t)2 4 |
|
3 |
1 |
2 |
3 |
|
+ 5 |
+ 9 |
+ 7 |
+ 6 |
|
u)2 3 |
v)1 3 |
w)4 4 |
x)6 2 |
|
3 |
5 |
1 |
1 |
|
+ 5 |
+ 7 |
+ 8 |
+ 7 |
|
Answers to Exercise Four |
|||||||||||||
|
a) |
13 |
b) |
15 |
c) |
17 |
d) |
15 |
e) |
9 |
f) |
9 |
g) |
9 |
|
h) |
13 |
i) |
13 |
j) |
11 |
k) |
7 |
l) |
9 |
m) |
10 |
n) |
15 |
|
o) |
18 |
p) |
10 |
q) |
13 |
r) |
16 |
s) |
16 |
t) |
15 |
u) |
13 |
|
v) |
16 |
w) |
17 |
x) |
16 |
|
|
|
|
|
|
|
|
Exercise FiveFind the sums. Check your work using the answer key at the end
of the exercise.
|
a)1 3 |
b)5 3 |
c)7 1 |
d)2 3 |
|
4 |
1 |
1 |
4 |
|
+ 8 |
+ 4 |
+ 9 |
+ 9 |
|
e)1 2 |
f)2 3 |
g)4 1 |
h)1 3 |
|
6 |
2 |
4 |
5 |
|
+ 9 |
+ 3 |
+ 6 |
+ 8 |
|
i)2 1 |
j)3 1 |
k)2 2 |
l)3 2 |
|
5 |
2 |
5 |
4 |
|
+ 7 |
+ 9 |
+ 8 |
+ 7 |
|
m)4 1 |
n)2 4 |
o)1 5 |
p)3 3 |
|
1 |
3 |
2 |
1 |
|
+ 2 |
+ 6 |
+ 1 |
+ 2 |
|
q)1 4 |
r)2 1 |
s)3 1 |
t)2 3 |
|
3 |
5 |
6 |
4 |
|
+ 6 |
+ 3 |
+ 5 |
+ 6 |
|
u)2 1 |
v)2 3 |
w)3 1 |
x)1 0 |
|
4 |
2 |
3 |
5 |
|
+ 8 |
+ 6 |
+ 2 |
+ 4 |
|
Answers to Exercise Five |
|||||||||||||
|
a) |
16 |
b) |
13 |
c) |
18 |
d) |
18 |
e) |
18 |
f) |
10 |
g) |
15 |
|
h) |
17 |
i) |
15 |
j) |
15 |
k) |
17 |
l) |
16 |
m) |
8 |
n) |
15 |
|
o) |
9 |
p) |
9 |
q) |
14 |
r) |
11 |
s) |
15 |
t) |
15 |
u) |
15 |
|
v) |
13 |
w) |
9 |
x) |
10 |
|
|
|
|
|
|
|
|
Exercise SixFind the sums. Check your work using the answer key at the end
of the exercise.
|
a)2 1 |
b)4 2 |
c)1 3 |
d)1 2 |
|
5 |
2 |
4 |
6 |
|
+ 0 |
+ 5 |
+ 3 |
+ 4 |
|
e)3 4 |
f)2 4 |
g)2 3 |
h)4 3 |
|
2 |
4 |
5 |
1 |
|
+ 6 |
+ 5 |
+ 1 |
+ 5 |
|
i)4 1 |
j)3 2 |
k)1 3 |
l)4 2 |
|
2 |
5 |
1 |
3 |
|
+ 1 |
+ 7 |
+ 3 |
+ 7 |
|
m)1 3 |
n)2 1 |
o)3 2 |
p)4 1 |
|
7 |
3 |
1 |
1 |
|
+ 1 |
+ 1 |
+ 1 |
+ 2 |
|
q)3 0 |
r)2 1 |
s)1 0 |
t)2 3 |
|
3 |
1 |
4 |
4 |
|
+ 1 |
+ 3 |
+ 3 |
+ 7 |
|
u)2 1 |
v)4 3 |
w)4 1 |
x)2 4 |
|
5 |
2 |
5 |
2 |
|
+ 6 |
+ 2 |
+ 6 |
+ 5 |
|
Answers to Exercise Six |
|||||||||||||
|
a) |
8 |
b) |
13 |
c) |
11 |
d) |
13 |
e) |
15 |
f) |
15 |
g) |
11 |
|
h) |
13 |
i) |
8 |
j) |
17 |
k) |
8 |
l) |
16 |
m) |
12 |
n) |
7 |
|
o) |
7 |
p) |
8 |
q) |
7 |
r) |
7 |
s) |
8 |
t) |
16 |
u) |
14 |
|
v) |
11 |
w) |
16 |
x) |
13 |
|
|
|
|
|
|
|
|
Perimeter
Did you spot the fact that each answer in the word problems before had a unit of measure? A unit of measure just tells you what you measured. Units of measure can be pages, fish, cans, kilometres, meters, centimetres, litres, millilitres, grams or kilograms. When you answer a word problem, you must include the unit of measure in your answer.
Try the following questions. Be sure to include the unit of measure in your answer.
Perimeter means distance around. To find the perimeter of a shape, find the lengths of the sides and add them together.
Example:
3 metres
Vegetable Garden
2 metres2 metres
3 metres
Rectangle
To find the perimeter, add the lengths of the sides of the rectangle. Perimeter = 3 + 2 + 3 + 2
Perimeter = 10 meters
Example:
4 centimetres
5 centimetres
3 centimetres
Triangle
To find the perimeter, add the lengths of the sides of the triangle. Perimeter = 4 + 3 + 5 Perimeter = 12 centimetres
Exercise OneFind the perimeter of each figure. Be sure to include
the units of measure in your answer. Check your work using the answer key at the end of the exercise.
- Find the perimeter of the swimming pool.
3 metres
Pool
4 metres4 metres
3 metres
Rectangle
- Find the perimeter of the garden.
6 metresGarden
3 metres
4 metres
Triangle
- Find the perimeter of the greenhouse.
3 metres
Greenhouse
3 metres3 metres
3 metres
Square
- Find the perimeter of the sign.
2 metres
Sign
3 metres3 metres
2 metres Rectangle
Answers to Exercise Onea)14 metresb)13 metresc)12 metresd)10 metres
Topic B: Self-TestMark/18Aim 15/18
Find the sums. Be sure to check your answers.12 marks
|
a)4 6 |
b)3 6 |
c)7 2 |
|
+ 2 |
+ 9 |
+ 8 |
|
f)2 1 |
g)3 5 |
h)4 6 |
|
+ 4 |
+ 8 |
+ 7 |
|
i)3 1 |
j)4 2 |
k)5 3 |
|
5 |
3 |
1 |
|
+ 2 |
+ 7 |
+ 8 |
|
l)3 5 |
m)1 5 |
n)2 1 |
|
1 |
4 |
6 |
|
+ 3 |
+ 6 |
+ 5 |
Solve each of the following word problems.6 marks Be sure to include the unit of measure in your answer.(2 marks each) Be sure to circle information and underline what is being asked.
- It took the cleanup crew 4 hours on Monday, 3 hours on Tuesday and 9 hours on Wednesday to clean the factory after each day’s work. How many hours in total did it take to clean the factory?
- Nella wants to put a fence around her garden. The garden measures 5 metres, 3 metres and 1 metre. How much fence does she need?
- Find the perimeter of the garden.
4 metres
Garden
2 metres2 metres
4
4 metres
Answers to Topic B Self-TestA.a)16 hoursb)9 metresc)12 metres
|
a) |
12 |
b) |
18 |
c) |
17 |
d) 7 |
e)16 |
f) |
17 |
|
g)
B. |
11 |
h) |
16 |
i) |
17 |
j)12 |
k) 16 |
l) |
14 |
Topic C: Addition of Larger Numbers
Use these steps to complete each addition question.
Step 1: Add the ones to the ones.
Step 2: Add the tens to the tens.
Step 3: Add the hundreds to the hundreds.
Example A:23
+ 56
Step 1: Add the ones to the ones. 3 ones + 6 ones = 9 ones 23
+ 56
9
Write the answer in line with the ones in the question.
Step 2: Add the tens. 2 tens + 5 tens = 7 tens
23
+ 56
79
The sum of 23 + 56 = 79
Example B:372
+ 415
Step 1: Add the ones. 2 ones + 5 ones = 7 ones
372
+ 415
7
Step 2: Add the tens. 7 tens + 1 ten = 8 tens
372
+ 415
87
Step 3: Add the hundreds. 3 hundreds + 4 hundreds = 7 hundreds
372
+ 415
787
Exercise OneFind the sums. Check your work using the answer key at the end
of the exercise.
|
a)54 |
b)20 |
c)58 |
d)62 |
|
+ 32 |
+ 69 |
+ 21 |
+ 13 |
|
e)73 |
f)44 |
g)10 |
h)36 |
|
+ 14 |
+ 54 |
+ 75 |
+ 22 |
|
i)10 |
j)16 |
k)40 |
l)37 |
|
+ 36 |
+ 23 |
+ 50 |
+ 32 |
|
m)14 |
n)23 |
o)41 |
p)40 |
|
+ 50 |
+ 16 |
+ 38 |
+ 11 |
|
q)28 |
r)21 |
s)72 |
t)31 |
|
+ 70 |
+ 56 |
+ 12 |
+ 14 |
|
u)47 |
v)34 |
w)63 |
x)31 |
|
+ 12 |
+ 65 |
+ 34 |
+ 45 |
|
Answers to Exercise One |
|||||||||||||
|
a) |
86 |
b) |
89 |
c) |
79 |
d) |
75 |
e) |
87 |
f) |
98 |
g) |
85 |
|
h) |
58 |
i) |
46 |
j) |
39 |
k) |
90 |
l) |
69 |
m) |
64 |
n) |
39 |
|
o) |
79 |
p) |
51 |
q) |
98 |
r) |
77 |
s) |
84 |
t) |
45 |
u) |
59 |
|
v) |
99 |
w) |
97 |
x) |
76 |
|
|
|
|
|
|
|
|
Exercise TwoFind the sums. Check your work using the answer key at the end
of the exercise.
|
a)47 |
b)65 |
c)78 |
d)84 |
|
+ 51 |
+ 24 |
+ 21 |
+ 12 |
|
e)73 |
f)64 |
g)25 |
h)51 |
|
+ 22 |
+ 13 |
+ 64 |
+ 38 |
|
i)26 |
j)40 |
k)76 |
l)86 |
|
+ 43 |
+ 57 |
+ 23 |
+ 13 |
|
m)28 |
n)35 |
o)27 |
p)19 |
|
+ 71 |
+ 62 |
+ 12 |
+ 40 |
|
q)41 |
r)53 |
s)61 |
t)52 |
|
+ 43 |
+ 32 |
+ 22 |
+ 21 |
|
u)23 |
v)32 |
w)13 |
x)46 |
|
+ 64 |
+ 43 |
+ 65 |
+ 42 |
|
Answers to Exercise Two |
|||||||||||||
|
a) |
98 |
b) |
89 |
c) |
99 |
d) |
96 |
e) |
95 |
f) |
77 |
g) |
89 |
|
h) |
89 |
i) |
69 |
j) |
97 |
k) |
99 |
l) |
99 |
m) |
99 |
n) |
97 |
|
o) |
39 |
p) |
59 |
q) |
84 |
r) |
85 |
s) |
83 |
t) |
73 |
u) |
87 |
|
v) |
75 |
w) |
78 |
x) |
88 |
|
|
|
|
|
|
|
|
Exercise ThreeFind the sums. Check your work using the answer key at the
end of the exercise.
|
a)32 |
b)23 |
c)61 |
d)83 |
|
+ 64 |
+ 54 |
+ 22 |
+ 11 |
|
e)32 |
f)63 |
g)75 |
h)46 |
|
+ 45 |
+ 33 |
+ 24 |
+ 12 |
|
i)44 |
j)25 |
k)41 |
l)54 |
|
+ 35 |
+ 42 |
+ 38 |
+ 45 |
|
m)25 |
n)35 |
o)32 |
p)22 |
|
+ 32 |
+ 42 |
+ 44 |
+ 14 |
|
q)57 |
r)42 |
s)34 |
t)25 |
|
+ 21 |
+ 54 |
+ 23 |
+ 42 |
|
u)13 |
v)60 |
w)34 |
x)77 |
|
+ 41 |
+ 25 |
+ 62 |
+ 21 |
|
Answers to Exercise Three |
|||||||||||||
|
a) |
96 |
b) |
77 |
c) |
83 |
d) |
94 |
e) |
77 |
f) |
96 |
g) |
99 |
|
h) |
58 |
i) |
79 |
j) |
67 |
k) |
79 |
l) |
99 |
m) |
57 |
n) |
77 |
|
o) |
76 |
p) |
36 |
q) |
78 |
r) |
96 |
s) |
57 |
t) |
67 |
u) |
54 |
|
v) |
85 |
w) |
96 |
x) |
98 |
|
|
|
|
|
|
|
|
Exercise FourFind the sums. Check your work using the answer key at the
end of the exercise.
|
a)286 |
b)649 |
c)156 |
|
+ 513 |
+ 250 |
+ 542 |
|
d)503 |
e)273 |
f)27 |
|
+ 361 |
+ 620 |
+ 961 |
|
g)852 |
h)300 |
i)364 |
|
+ 36 |
+ 50 |
+ 523 |
|
j)568 |
k)432 |
l)621 |
|
+ 210 |
+ 325 |
+ 214 |
|
m)312 |
n)135 |
o)231 |
|
+ 541 |
+ 420 |
+ 354 |
|
p)532 |
q)537 |
r)145 |
|
+ 141 |
+ 21 |
+ 441 |
|
s)235 |
t)723 |
u)521 |
|
+ 214 |
+ 113 |
+ 344 |
|
v)624 |
w)524 |
x)463 |
|
+ 174 |
+ 221 |
+ 425 |
|
Answers to Exercise Four |
|||||||||||||
|
a) |
799 |
b) |
899 |
c) |
698 |
d) |
864 |
e) |
893 |
f) |
988 |
g) |
888 |
|
h) |
350 |
i) |
887 |
j) |
778 |
k) |
757 |
l) |
835 |
m) |
853 |
n) |
555 |
|
o) |
585 |
p) |
673 |
q) |
558 |
r) |
586 |
s) |
449 |
t) |
836 |
u) |
865 |
|
v) |
798 |
w) |
745 |
x) |
888 |
|
|
|
|
|
|
|
|
Exercise FiveFind the sums. Check your work using the answer key at the
end of the exercise.
|
a)172 |
b)314 |
c)431 |
|
+ 401 |
+ 553 |
+ 317 |
|
d)213 |
e)163 |
f)412 |
|
+ 384 |
+ 224 |
+ 531 |
|
g)731 |
h)314 |
i)253 |
|
+ 142 |
+ 524 |
+ 401 |
|
j)243 |
k)653 |
l)576 |
|
+ 425 |
+ 434 |
+ 303 |
|
m)732 |
n)251 |
o)605 |
|
+ 210 |
+ 734 |
+ 143 |
|
p)715 |
q)254 |
r)351 |
|
+ 223 |
+ 125 |
+ 645 |
|
s)754 |
t)425 |
u)465 |
|
+ 231 |
+ 143 |
+ 233 |
|
v)501 |
w)335 |
x)561 |
|
+ 368 |
+ 403 |
+ 234 |
|
Answers to Exercise Five |
|||||||||||||
|
a) |
573 |
b) |
867 |
c) |
748 |
d) |
597 |
e) |
387 |
f) |
943 |
g) |
873 |
|
h) |
838 |
i) |
654 |
j) |
668 |
k) |
1087 |
l) |
879 |
m) |
942 |
n) |
985 |
|
o) |
748 |
p) |
938 |
q) |
379 |
r) |
996 |
s) |
985 |
t) |
568 |
u) |
698 |
|
v) |
869 |
w) |
738 |
x) |
795 |
|
|
|
|
|
|
|
|
Exercise SixFind the sums. Check your work using the answer key at the
end of the exercise.
|
a)754 |
b)410 |
c)653 |
|
+ 231 |
+ 257 |
+ 142 |
|
d)815 |
e)243 |
f)615 |
|
+ 170 |
+ 146 |
+ 303 |
|
g)124 |
h)451 |
i)705 |
|
+ 762 |
+ 206 |
+ 261 |
|
j)627 |
k)357 |
l)725 |
|
+ 512 |
+ 130 |
+ 273 |
|
m)753 |
n)425 |
o)652 |
|
+ 902 |
+ 203 |
+ 137 |
|
p)357 |
q)675 |
r)802 |
|
+ 132 |
+ 214 |
+ 254 |
|
s)524 |
t)723 |
u)243 |
|
+ 321 |
+ 306 |
+152 |
|
v)145 |
w)262 |
x)545 |
|
+ 213 |
+ 321 |
+ 131 |
|
Answers to Exercise Six |
|||||||||||||
|
a) |
985 |
b) |
667 |
c) |
795 |
d) |
985 |
e) |
389 |
f) |
918 |
g) |
886 |
|
h) |
657 |
i) |
966 |
j) |
1 139 |
k) |
487 |
l) |
998 |
m) |
1 655 |
n) |
628 |
|
o) |
789 |
p) |
489 |
q) |
889 |
r) |
1 056 |
s) |
845 |
t) |
1 029 |
u) |
395 |
|
v) |
358 |
w) |
583 |
x) |
676 |
|
|
|
|
|
|
|
|
Topic C: Self-TestMark/22Aim19/22
Find the sums. Be sure to check your answers.12 marks
|
a)46 |
b)32 |
c)72 |
|
+ 23 |
+ 13 |
+ 25 |
|
d)56 |
e)65 |
f)25 |
|
+ 21 |
+ 34 |
+ 51 |
|
g)324 |
h)183 |
i)753 |
|
+ 263 |
+ 514 |
+ 145 |
|
j)618 |
k)224 |
l)563 |
|
+ 120 |
+ 465 |
+ 216 |
Solve each of the following word problems.6 marks Be sure to include the unit of measure in your answer.(2 marks each) Be sure to circle information and underline what is being asked.
- Mahala’s dad worked 45 hours one week and 52 hours the next week. How many hours did he work during those two weeks?
- A trucker drove 526 kilometers on the first trip and 341 kilometers on the next. How many kilometers did the trucker drive altogether?
- Find the perimeter of the garden.
12 metres
Garden
11 metres11 metres
12 metres
|
a) |
69 |
b) |
45 |
c)97 |
d) |
77 |
e)99 |
f) |
76 |
|
g) |
587 |
h) |
697 |
i)898 |
j) |
738 |
k) 689 |
l) |
779 |
|
B. a) |
97 hours |
|
b)867 |
kilometres |
c) |
46 metres |
|
|
|
Answers to Topic C Self-Test A.
Emotions Check
How are you feeling? Are your palms moist? How is your breathing? Take control. Be the boss. If you are feeling anxious, practice your breathing exercise.
Remember: breathe in slowly to the count of four, hold it for the count of four, and breathe out slowly to the count of four.
Unit 2 Review – Addition
You will now practice all the skills you learned in Unit 2. Check your work using the answer key at the end of the review.
Check out your addition facts.
|
a)5 |
b)8 |
c)3 |
d)9 |
|
+ 6 |
+ 2 |
+ 4 |
+ 7 |
|
e)7 |
f)6 |
g)9 |
h)2 |
|
+ 10 |
+ 8 |
+ 4 |
+ 3 |
|
i)8 |
j)3 |
k)9 |
l)5 |
|
+ 4 |
+ 3 |
+ 9 |
+ 4 |
|
m)1 |
n)3 |
o)6 |
p)5 |
|
+ 2 |
+ 1 |
+ 9 |
+ 3 |
Add across or horizontally.
|
a) |
8 |
+ |
7 = |
b) |
0 |
+ |
3 |
= |
|
|
c) |
8 |
+ |
10 = |
d) |
5 |
+ |
2 |
= |
|
|
e) |
2 |
+ |
2 |
= |
f) |
7 |
+ |
5 |
= |
|
g) |
9 |
+ |
8 |
= |
h) |
3 |
+ |
6 |
= |
|
i) |
9 |
+ |
5 |
= |
j) |
1 |
+ |
5 |
= |
k)6 + 10 =l)4 + 1 =
m)7 + 3 =n)5 + 8 =
o)2 + 6 =p)8 + 3 =
Find the sums.
|
a)6 |
b)5 |
c)4 |
|
2 |
2 |
4 |
|
+ 4 |
+ 1 |
+ 8 |
|
d)3 |
e)2 |
f)6 |
|
4 |
3 |
4 |
|
+ 5 |
+ 4 |
+ 7 |
|
g)3 |
h)7 |
i)3 |
|
4 |
2 |
6 |
|
+ 6 |
+ 4 |
+ 8 |
Find the sums.
|
a)26 |
b)42 |
c)44 |
|
+ 30 |
+ 57 |
+ 32 |
|
d)32 |
e)83 |
f)76 |
|
+ 81 |
+ 13 |
+ 12 |
|
g)34 |
h)54 |
i)52 |
|
+ 51 |
+ 22 |
+ 43 |
|
j)25 |
k)72 |
l)66 |
|
+ 42 |
+ 35 |
+ 12 |
Find the sums.
|
a)342 |
b)725 |
c)362 |
|
+ 523 |
+ 142 |
+ 417 |
|
d)425 |
e)284 |
f)315 |
|
+ 172 |
+ 314 |
+ 132 |
|
g)363 |
h)741 |
i)403 |
|
+ 415 |
+ 225 |
+ 445 |
|
j)654 |
k)234 |
l)525 |
|
+ 215 |
+ 352 |
+ 431 |
Word Problems.
- Find the perimeter of the shape. Be sure to put the unit of measure in your answer. Write the name of the shape below the picture.
3 metres
1 metre1 metre
3 metres
5 metres
5 metres5 metres
5 metres
- The CN Tower in Toronto is 554 metres high. On top of the tower is a TV mast that is 122 metres high. What is the total height of the tower and TV mast?
Seung weighs 36 kilograms. His father weighs 62 kilograms. How much do they weigh altogether?
|
a) |
11 |
b) |
10 |
c) |
7 |
d) |
16 |
e) |
17 |
|
f) |
14 |
g) |
13 |
h) |
5 |
i) |
12 |
j) |
6 |
|
k) |
18 |
l) |
9 |
m) |
3 |
n) |
4 |
o) |
15 |
|
p) |
8 |
|
|
|
|
|
|
|
|
|
B. |
|
|
|
|
|
|
|
|
|
|
a) |
15 |
b) |
3 |
c) |
18 |
d) |
7 |
e) |
4 |
|
f) |
12 |
g) |
17 |
h) |
9 |
i) |
14 |
j) |
6 |
|
k) |
16 |
l) |
5 |
m) |
10 |
n) |
13 |
o) |
8 |
|
p) |
11 |
|
|
|
|
|
|
|
|
|
C. |
|
|
|
|
|
|
|
|
|
|
a) |
12 |
b) |
8 |
c) |
16 |
d) |
12 |
e) |
9 |
|
f) |
17 |
g) |
13 |
h) |
13 |
i) |
17 |
|
|
|
D. |
|
|
|
|
|
|
|
|
|
|
a) |
56 |
b) |
99 |
c) |
76 |
d) |
113 |
e) |
96 |
|
f) |
88 |
g) |
85 |
h) |
76 |
i) |
95 |
j) |
67 |
|
k) |
107 |
l) |
78 |
|
|
|
|
|
|
|
E. a) |
865 |
b) |
867 |
c) |
779 |
d) |
597 |
e) |
598 |
|
f) |
447 |
g) |
778 |
h) |
966 |
i) |
848 |
j) |
869 |
|
k) |
586 |
l) |
956 |
|
|
|
|
|
|
|
F. |
|
|
|
|
|
|
|
|
|
CONGRATULATIONS!!Now you have finished Unit 2.TEST TIME!Ask your instructor for the Practice Test for this unit.Once you’ve done the practice test, you need to do the unit 2 test.Again, ask your instructor for this.Good luck!
148Book 1
