Which way shows one way you can decompose 15 to find 42 x 15?
A. О (42 + 10) (42 + 5)
B. O (42 + 10) + (42 + 5)
C.O (42 x 10) + (42 * 5)
D. O (42 x 1) + (42 x 5)

Answer :

mberisso

Answer:

42 * 10 + 42 * 5

which agrees with the third option (C) shown on the list of possible answers

Step-by-step explanation:

Notice that using distributive property we can write:

42 * 15 = 42 (10 + 5) = 42 * 10 + 42 * 5

which agrees with the third option (C) shown on the list of possible answers.

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