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Mathematics 15 Online
OpenStudy (anonymous):

7(107) + 1(106) + 2(105) + 7(104) + 4(103)=

OpenStudy (amistre64):

if this is to be done by hand, the distributive property might be useful

OpenStudy (mathmale):

I see 5 separate products in the given expression. Multiply them all out. The first one will be 7(107), or 749. Complete the other four products. Then add together all five products.

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