# Math Ch9 Study Guide Key ```Name
Date
Chapter 9 Study Guide
on the line provided.
What is the value of each expression? Write each sum in simplest form.
1
1
1. 9 + 6 =
1
5
C. 6
A. 18
B.
2
D.
9
4
2
9
9
5
1
1.
A
2.
G
3.
A
4.
H
5.
A
6.
H
18
2. + =
H.
F. 9
2
1
9
3
2
9
8
G. 3
5
7
I. 9
3. − =
A.
B.
7
C.
9
3
D.
9
4
9
9
9
5
4. 8 − 8 =
F.
1
H.
8
2
1
4
3
G. 8
I. 8
Which is the best estimate of each expression?
1
1
5. 3 6 + 5 6 =
A. 8
C. 11
B. 10
D. 14
1
1
6. 3 5 + 6 5 =
F. 4
G. 5
222
H. 9
I. 10
Name
Date
Chapter 9 Study Guide
(continued)
line provided.
3
1
7. What is the value of 10 8 + 2 8?
1
7.
12 1/2
8.
8 3/10
9.
2 2/5
10.
2 1/4
11.
14 1/2
12.
17 pounds
13.
5/12 hour
14.
6 cans
9
8. What is the value of 12 5 − 3 10?
Add or subtract. Write in simplest form.
1
4
1
7
9. 6 5 − 3 5 =
10. 5 8 − 2 8 =
3
3
11. 8 4 + 5 4 =
Solve.
2
12. A store sells 143 pounds of carrots one day. The next
1
day the store sells 23 pounds of carrots. How many
pounds of carrots did the store sell?
1
2
13. Ian read for 4 hour today. He read for 3 hour yesterday.
How much longer did Ian spend reading yesterday
than today?
2
14. Rey feeds his dog 5 of a can of dog food in the morning
4
and 5 of a can in the evening. How many cans of dog food
will Rey need in order to feed his dog for five days?