model multiplication of decimals
Post on 26-May-2015
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How to Model Multiplication of
Decimals
To model a whole number times a decimal:
Example 3 x 0.2 =
This is 3 groups of 0.2 so shadein 3 groups of 2 tenths.
Example 3 x 0.2 =
Example 3 x 0.2 = 0.6
To model a whole number times a decimal when the answer is greater
than 1 Example 0.4 X 5
.4 X 5The Answer is 2
To Model decimal x decimal:
Example 0.3 x 0.5 =
First, shade in the first number vertically.
Example 0.3 x 0.5 =
Second, shade in the 2nd number horizontally.
Example 0.3 x 0.5 =
The area that has been shaded twice is the answer.
Example 0.3 x 0.5 = .15
You try it! 0.5 x 0.4
You try it! 0.5 x 0.4
0.5 x 0.4 = 0.20
You try it! 0.3 x 0.4
0.3 x 0.4 = 0.12
You try it! 0.8 x 0.9
0.8 x 0.9 = 0.72
You try it! 0.6 x 0.7
0.6 x 0.7 = 0.42
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