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Multiplication Patterns
Multiplication Patterns Part 2
Multiply Decimals and Whole Numbers
Multiplying Decimals
Multiplying Decimals Part 2
100

Which direction does the decimal move when you multiply by 10?

Right

100

45.6 x 0.01

.456

100

How many times do you move the decimal?

4.4 x 2

1/once

100

What is the first step you need to do before multiplying a decimal? And what do you do after finding the answer?

Move the decimal to the end of the number and move it back when you solve the problem.

100

3.45 x 1.3  

4.485

200

Which direction does the decimal move when you multiply by 0.1? 

Left

200

13.4 x 103

134,000

200

5.67 x 3

17.01

200

2.4 x 2.1 

5.04

200

What is wrong with the problem?

4.5 x 1.3 = 585

The decimal was not moved back twice in the product.

300

How many times does the decimal move when you multiply by .01?

Two times/twice

300

34.2 x 102

3,420

300

24.2 x 5

121

300

3.45 x 1.2

4.14

300

What is wrong with the problem?

3.45 x 3.3 = 113.85

The decimal needs to be moved back one more time in the product.
400

23.1 x 10

230

400

52.4 x .1

5.24

400

235.6 x 4

942.4

400

23.45 x 2.6

60.97

400

3.452 x 3.4 

11.7368

500

1.45 x .1

.145

500

45.67 x 105

4,567,000

500

45.26 x 5

226.3

500

12.45 x 7.1

88.395

500

456.3 x 2.3

1,049.49