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OpenStudy (anonymous):
Which of the sums below can be expressed as 7(4 + 9)? 28 + 9 28 + 63 7 + 63 11 + 16
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OpenStudy (anonymous):
i feel dumb
OpenStudy (michele_laino):
hint: \[\Large 7 \times \left( {4 + 9} \right) = 7 \times 4 + 7 \times 9 = ...?\]
OpenStudy (michele_laino):
we have to apply the distributive property of multiplication over addition
OpenStudy (michele_laino):
hint: what is: 7*4=...?
OpenStudy (michele_laino):
and what is: 7*9=...?
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