Unit 1 Review

Dividing Fractions

100

1/2 divided by 1/3

1 1/2

200

8 divided by 2/3

5 1/3

300

1 1/4 divided by 2/3

1 7/8

400

2 1/3 divided by 8

7/24

500

6 1/4 divided by 1 1/4

5

Order of Operations

100

9 + 4 x 7 - 1

36

200

(2 +3)²

25

300

9 - 8 x 1 + 3³

28

400

4(3 + 6) x 3

108

500

6² + (14 - 2 x 3) - 2³

36

Fraction/Decimal Operations

100

How many 1/2s are in 3?

6

200

7.89 x 1.2

9.468

300

2  1/4 + 4  3/5

6  17/20

400

1/4 (3.1 + 0.9) x 15

15

500

7  1/2 + 3/8 x 3  2/3

8  7/8

GCF/LCM

100

Find the GCF of 12 and 30.

6

200

Find the LCM of 5 and 20.

20

300

Find the GCF of 72 and 84.

12

400

Find the LCM of 12 and 27.

108

500

Find the GCF of 42, 70, and 84.

14

Word Problems

100

Tickets for an amusement park cost $10 for adults and $6 for children. Find the total cost for 2 adults and 3 children.

$38

200

A container has 36 cups of flour.  I use 2 and 1/3 cups of flour to bake a loaf of bread.  Is there enough flour to bake 15 loaves of bread? 

Yes, 36 divided by 2 1/3 equals 15 3/7, so I could back 15 loaves of bread. 

300

You are creating identical picnic baskets using 30 sandwiches and 42 cookies. What is the greatest number of baskets that you can fill using all the food?

The greatest factor they have in common is 6, so you can make 6 baskets using all the food.

400

You have piano lessons every fourth day and guitar lessons every sixth day. Today you have both lessons. In how many days will you have both lessons on the same day again?

In 12 days you will have both lessons on the same day again. (4, 8, 12, . . . and 6, 12, . . . )

500

Hamburgers come in packs of 20, while buns come in packs of 12. What is the least number of packs you should buy in order to have the same number of hamburgers and buns? Be careful . . .how many PACKS should you buy of each?

3 packs of burgers and 5 packs of buns. (60 is the LCM)