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10 December, 15:46

A. Describe two ways to find product 4.2 (6 + 0.43)

b. What property of multiplication does your answer to part A illustrate?

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Answers (1)
  1. 10 December, 18:51
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    First method:

    What we can do first is to distribute directly 4.2 to 6 and 0.43, that is:

    4.2 (6 + 0.43)

    = 4.2 * 6 + 4.2 * 0.43

    = 25.2 + 1.806

    = 27.006

    Second method:

    We can add the two numbers 6 and 0.43 then multiply with 4.2, that is:

    4.2 (6 + 0.43)

    = 4.2 (6.43)

    = 27.006

    What we see is the Distributive Property of multiplication which states that multiplying the sum of a number is similar to multiplying each number and then adding the products.
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