Decimal Operations Review

Addition

100

0.95 + 5.09 =

6.04

200

11.27 + 9.4 =

20.67

300

74.83 + 132.05

206.88

400

123.71 + 8.421

132.131

500

627.94 + 134.5544

762.4944

Subtraction

100

14.23 - 5.68 

8.55

200

67.75 - 9.6 =

58.15

300

43.03 - 16.9 = 

26.13

400

12- 4.61

7.39

500

73.92- 15.7

58.22

Multiplication

100

8 x 6.5 =

52

200

4.2 x 1.8 =

7.56

300

3.7 x 78.8 =

291.56

400

0.07 x 0.4

0.028

500

.293 x 6.7

1.9631

Mixed Review

100

For which 2 operations (addition, subtraction, multiplication, division) do you need to line up the decimal points?

Addition and Subtraction

200

For which operations (addition, subtraction, multiplication, division) do you need to count the numbers after the decimal points to determine where the decimal should go?

Multiplication

300

How many states are there in the United States of America?

50

400

Which operation (addition, subtraction, multiplication or division) should you line up the numbers and not the decimals?

Multiplication 

500

What do you do to the decimal point when multiplying a number by 10, 100, or 1000?

Move the decimal point to the right for however many zeros are in the base ten number.