Decimals
Fractions
Percent
Equations
Ratios and Proportions
100

9.8 - 6.2 - 1.8

1.8

100

8/9 + 5/6 + 7/27

107/54

100

The decimal and fraction equivalent (fully reduced) of 45% is...?

0.45 and 9/20

100

2m + 9 = 17

m = 4

100

Write the following as a ratio. There are 6 boys and 9 girls in the class. 

2 : 3

200

5.8 * 3.7

21.46

200

6/15 - 8/20

0

200

The percent equivalent of the decimal 0.0004 is...? 

0.04%

200

10p - 85 = 915

p = 100

200

Are the following ratios equivalent? 

40:30 and 80:60

yes!

300

87.6 - 2.12

83.19

300

6 7/12 - 5 9/15

59/60

300

14% of 30 is this number. 

4.2

300
Write the equation and then solve it. 

Twice a number added to 8 is 12. 

x = 2

300

Solve the proportion: 

d/10 = 36/20

d = 18

400

35.9 + 9.4 +132.9 + 54.9

233.1

400

5/7 * 14/20 * 2/5

1/5

400

5 is 20% of what number? 

25

400

4m - 0.8 = 9.8

m = 2.65

400

?/45 = 16/40 = 24/?

9/45 = 16/40 = 24/x

500

985.6/0.4

2464

500

45/54 divided by 10/18

3/2

500

40% of the student population of 400 students are at school today. How many students are present today? 

160

500

A number divided by three and subtracted by 8 is 14. Find the number. 

The number is 66. 

500

In the class, there are 2 girls for every 3 boys. There are 30 children in the class. How many are boys?

There are 18 boys in the class. 

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