Javascript not enabled
Name:
Try It Out -- Chapter 4, Lesson 5
Numeric Response
Use mental math.
1.
40
–
10 =
____.
2.
55 – 19 =
____.
3.
85 – 29 =
____.
4.
33
–
19 =
____.
5.
48 – 18 =
____.
6.
82 – 49 =
____.
7.
61 – 48 =
____.
8.
73 – 17 =
____.
Use mental math to solve these problems.
9.
Diane is 18 years old. Her aunt is 31 years old. How much older is Diane’s aunt than Diane?
10.
James rides 28 kms on his bicycle; John rides 19 kms on his bicycle. How much further did James ride than John?