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Lesson 13: Adding and Subtracting Decimals



 1. 

Add each of the following decimals.

4.5 + 3.8
a.
8.3
b.
7.3
c.
7.13
d.
8.5
 

 2. 

6.7 + 4.3
a.
11
b.
10.10
c.
10.7
d.
10.3
 

 3. 

54.3 + 11.14
a.
64.314
b.
64.34
c.
65.4
d.
65.44
 

 4. 

5.78 + 7.66
a.
13.34
b.
12.7866
c.
12.44
d.
13.44
 

 5. 

Subtract each of the following decimals.

2.5 - 1.9
a.
1.6
b.
0.6
c.
2.6
d.
4.4
 

 6. 

43.5 - 12.33
a.
41.17
b.
21.33
c.
31.17
d.
21.17
 

 7. 

56.01 - 5.5
a.
49.51
b.
50.51
c.
39.51
d.
51.51
 

 8. 

31 - 9.99
a.
20.99
b.
21.99
c.
21.01
d.
20.01
 

 9. 

An African elephant was 0.85 m tall at birth. It grew to be 3.24 m tall. How much taller did it grow since it was born?
a.
1.39 m
b.
1.29 m
c.
2.39 m
d.
2.29 m
 

 10. 

John had $3.50 to spend at the store. He bought 2 candies, each for $0.67. How much change did John get back?
a.
$1.14
b.
$1.34
c.
$3.16
d.
$2.16
 



 
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