Add and Subtract Fractions
Multiplying and Dividing by 10, 100, or 1000
Adding/Subtracting Decimals
Multiply Decimals
Divide Decimals
100

3/5 + 1/7 =

26/35

100

12.1 x 102

1210

100

Add these decimals

 21.7 + 8.27

29.97

100

Multiply these decimals 0.03 x 10

.3

100

Divide these decimals

3.54 ÷  2

1.77

200

2/4 + 3/9 =

30/36

200

9.563 x 101 =

95.630

200

Add these decimals.

6.125 + 18

 

24.125

200

Multiply these decimals 0.23 x 7

1.61

200

Divide these decimals.

10.71 ÷  0.7

15.3

300

3/5 - 4/10 =

2/10

or

10/50

300

52.1 ÷  103 =

0.0521

300

Add these decimals. 5.2 + 3.11

8.31

300

Multiply these decimals 4.4 x 5.3

23.32

300

Divide these decimals.

2.54 ÷  0.3

8.46 repeating

400

6/7 - 3/5 =

9/35

400

0.321 x 102 =

32.1

400

Subtract these decimals 17 - 9.54

7.46

400

Multiply these decimals 0.07 x 0.26

0.0182

400

Divide these decimals.

2.15 ÷  0.05

43

500

3  1/4  -   1   1/2=

1   3/4

500

59.8 ÷ 102 =

0.598

500

You start with 20 dollars. You buy a bag of takis for $4.68 and a drink for $2.25. What is your change?

$13.07

500

Multiply these decimals 2.5 x 7

17.5

500

Divide these decimals. Round your answer to the nearest thousandth.

1.72 ÷  0.7

2.457