Addition
Subtraction
Multiplication
Multiplication bonus
Mixed Review
100

0.95 + 5.09

6.04

100

5.68 - 4.23

1.45

100

8 x 0.1

0.8

100

13.8 x 3

41.4

100

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

Addition and Subtraction

200

11.27 + 9.45

20.72

200

67.75 - 8.1

59.65

200

4.22 x 0.1

0.422

200

33.6 x 0.05

1.68

200
When multiplying a whole number to a decimal, your product will be less than the whole number being multiplied. True or False?

True

300

9.68 + 0.189

9.869

300

43.032 - 6.91

36.122

300

3.70 x 0.8

2.96

300

1 meter of metal rod weighs 2.6 kg. How much would a 0.7 m of metal rod weigh?

1.82 kg

300

Multiplying by 0.1 is like dividing by 10 

OR 

multiplying by 0.01 is like dividing by 100

True
400

.239 + 1.36

1.599

400

12.12 - 4.995

7.125

400

0.07 x 0.42

0.0294

400

Multiply 27.15 by 0.9

24.435

400
One way to multiply with decimals is to move the decimals point of the number being mulitplied to the right.
False
500

8.324 + 2.4512

10.7752

500

62.9511 - 35.256

27.6951

500

6.7 x 0.233

1.5611

500

129.9 x 0.03

3.897

500

When subtracting decimals (or whole numbers) does the order matter? Explain

Yes

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