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OPERATIONS WITH DECIMALS

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Presentation on theme: "OPERATIONS WITH DECIMALS"— Presentation transcript:

1 OPERATIONS WITH DECIMALS

2 Using Base Ten Blocks to Multiply Decimals
rod = one hundredth (0.01) Flat = one (1) Long = one tenth (0.1)

3 Multiplying Decimals by Whole Numbers
Tenths

4 Multiply 5 x 0.3 Shade in 0.3 five times using a different color each time. 5 x 0.3 = 1.5

5 4 x 0.6 4 x 0.6 = 2.4

6 3 x 0.7 Shade in 0.7 three times using a different color each time. 3 x 0.7 = 2.1

7 On Your Own Use tenth grids to do the following problems:
1. 2 x x 0.7 3. 9 x x 0.3 5. 7 x x 0.8

8 Multiplying Decimals by Whole Numbers Using Models
Hundredths

9 Multiply 4 x 0.19 Shade 0.19 four times . 4 x 0.19 = 0.76

10 Multiply 5 x 0.25 Shade 0.25 five times . 5 x 0.25 = 1.25

11 Multiply 3 x .35 3 x .35 = 1.05

12 On Your Own Use hundredth grids do the following problems:
1. 4 x x 0.19 3. 2 x x 0.51


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