6th grade review April 2021

Equivalent Ratios

100

Are the ratios equivalent?

1/2  and 2/4

YES

200

Are ratios equivalent? 

2/3 and 6/9

YES

300

What is the missing number?

3/5 = ?/25

15

400

What is the missing number?

4/12 = ?/36

12

500

What is the missing number?

7/10 = ?/100

70

Adding Integers

100

-9+2

7

200

-12+{-6}

-18

300

-10+19+5

14

400

Use mental math. x+(-8)=4

x=12

x-8 =4

 +8=+8

x=12

500

Use mental math. y+6= -2

y= -8

Subtracting Integers

100

4-7

-3

200

9-5

4

300

-4-6

-10

400

-2-3

-5

500

-6-{-9}

3

Unit Rate

100

Find the unit rate.

40  students on 2 buses = ? students per bus

10

200

Find the unit rate.

48  plants in 2 rows =  ? plants per row

24

300

Find the unit rate.

39  chairs in 3 rows =  chairs per row

13

400

If 6 packs of gum cost $2, how much would a pack of gum cost?

$0.3

500

If Jimmy ran a 5km race in 30 minutes, what was Jimmy's unit rate?  How many minutes did it take for him to run 1km?

6 minutes

Converting Decimals to Percentage

100

0.1

10%

200

0.02

2%

300

0.35

35%

400

0.08

8%

500

2/50

4%

(2/50=4/100)