Ch 8

Question 0

Sandy is weaving bracelets out of yarn. She needs 10 inches of yarn to make one bracelet. How many inches does she need to make 10 bracelets?

Answer 0

100 inche

Question 1

Tim did 10 sets of push ups with 12 push ups in each set. How many push ups did he do in all

Answer 1

120

Question 2

9 x 12

Answer 2

108

Question 3

There are 108 people in the cafeteria. Each table seats 9 people. What is the best operation to use to find the total number of tables needed to seat everyone?

Answer 3

Division

108 divided by 9 = 12

Question 4

Mr. Dowling has his students stand in rows of 12 students in each row. If there are 4 rows of students, how many students are there in all.

Answer 4

48 students in all

Question 5

Ryan studied the same number of hours each week. In 6 weeks, he studied 90 hours. What is the best operation to use to find the number of hours he studied each week?

Answer 5

Division

90 divided by 6 = 15 hours each week

Question 6

7 x (3 x 4). (7 x 3) x 4

What symbol makes the operation true?

Answer 6

=

Question 7

(4 x 3) x 8

Answer 7

96

Question 8

7 x (2 x 6)

Answer 8

84

Question 9

Find the missing number

? X 9 = 0

Answer 9

0

Question 10

Regina mad 6 trays of cookies. Each tray had 9 cookies.
What is the best operation to use to find the total number of cookies?
How many cookies did Regina make?

Answer 10

Multiplication

6 x 9 =54

Question 11

Write the fact family for 7, 9, and 63

Answer 11

7x9=63. 9x7=63

63 / 9 = 7. 63/7=9

Question 12

Three raffle tickets cost $2. How many raffle tickets can Steve buy with $10.

Answer 12

10/2= 5

Question 13

12 divided by 4

Answer 13

3

Question 14

There are 4 fish tanks in the pet store. Each tank holds 5 fish. How many fish are in the pet store?

Answer 14

4x5= 20

Question 15

5 x 6 =

Answer 15

30

Question 16

11 x b = 99

Answer 16

B = 9

Question 17

32 divided by 8 = n

Answer 17

N = 4

Question 18

6 x r = 48

Answer 18

R = 8

Question 19

4 x 5 =

Answer 19

20

Question 20

Kevin read for 60 minutes over 6 days. He read for the same number of minutes each day. For how many minutes did he read each day.

Answer 20

60 divided by 6 = 10 minutes

Question 21

72 divided by 8

Answer 21

9

Question 22

7 x 9 =

Answer 22

63

Question 23

Sara leaves for school at 7:30. She needs 45 minutes to get ready. What time does she need to get up?

Answer 23

There is 60 minutes in an hour. If she leaves at 7:30 we can subtract 30 minutes - making it 7:00 Sara still needs another 15 minutes to get ready. (45-30=15) Subtract 60 minutes from 7:00 making it 6:00. 60-15=45 minutes. Now add the 45 min to the 6:00. Sara needs to wake up at 6:45 to be ready to leave for school at 7:30