Mr. Cohen's Unit 1 Review

I can figure out the GCF or LCM.

100

What is the LCM of 10 and 6

30

200

What is the LCM of 5 and 10?

10

300

True or False: What is the GCF of 63 and 54

9

400

What is the GCF of 21 and 14?

7

500

What is the GCF of 18 and 36?

18

I can solve decimal problems

100

Convert 1/2 to a decimal

0.5

200

Convert 9/12 to a decimal

0.75

300

Convert 5/20 to a decimal

0.25

400

Convert 1 7/70 to a decimal

1.1

500

Convert 5/6 to a decimal

0.83333333333333333

(repeat over the 3)

I can convert decimals to fractions.

100

What is 0.08 as a fraction?

8/100 or 2/25

200

What is 0.65 as a fraction?

65/100 or 13/20

300

what is 1.25 as a fraction?

1 25/100 or 1 1/4

400

What is 7.12 as a fraction?

7 12/100 or 7 3/25

500

What is 0.675 as a fraction?

675/1000 or 27/40

I can multiply fractions using standard algorithm.

100

1/2 x 1/4

1/8

200

3/6 x 3/9

1/6

300

4/12 x 3/5

1/5

400

3 x 1/6

1/2

500

1 1/2 x 2 1/4 = 

3 3/8

I can divide fractions using standard algorithm.

100

What is our dividing fractions rule?

Keep, Change, Flip, Multiply!

200

How would you set up the multiplication problem using our dividing fractions rule? (DO NOT SOLVE)

10 divided by 1/5

10/1 x 5/1

300

How would you set up the multiplication problem using our dividing fractions rule? (DO NOT SOLVE)

4/5 divided by 3/5

4/5 x 5/3

400

Set up the multiplication problem, then solve:

3 divided by 1/2

3/1 x 2/1

6 or 6/1

500

Set up the multiplication problem, then solve:

2 divided by 3 5/8

2/1 x 8/29

16/29