Pearson Algebra 1 Common Core, 2011
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Pearson Algebra 1 Common Core, 2011 View details
7. The Distributive Property
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Exercise 42 Page 50

Write 7.25 as a sum.

21.75

Practice makes perfect
To use mental math to multiply, we can rewrite 7.25 as a sum of 7+0.25 and then distribute 3 with the terms inside the parentheses.
3 * 7.25
3(7+0.25)
3(7)+3(0.25)
21+0.75
21.75
The product equals 21.75.