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Addition
Subtraction
Multiplication
Mixed Review
100
0.95 + 5.09 =
6.04
100
5.68 - 4.23 =
1.45
100
8 x 6.5 =
52
100

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

Addition and Subtraction

200
11.27 + 9.4 =
20.67
200
67.75 - 8.1 =
59.65
200
4.2 x 1.8 =
7.56
200

For which operations (addition, subtraction, multiplication, division) do you need to count the number of digits after the decimal points?

Multiplication

300

9.6 + 0.18 =

9.78

300

43.03 - 6.91 =

36.12

300
3.7 x 0.8 =
2.96
300

What number do you need to add to the dividend (after the decimal point) when there are no more numbers to bring down?

0

400

1.23 + 8

9.23

400

12 - 4.61 =

7.39

400

0.07 x 0.4

0.028

400

When multiplying by a decimal, which way do you move the decimal point?

To the left

500

8 + 2.45

10.45

500

62 - 48.6

13.4

500

.23 x 6.7

1.541

500

When multiplying by a 100, how many places and which way do you move the decimal point?

Right two