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Find all the partial product. then add to find the final product 16×15
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45 votes
Find all the partial product. then add to find the final product 16×15

Find all the partial product. then add to find the final product 16×15-example-1
User Saffik
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10 votes
10 votes

We can write the numbers as a sum of other number, so:


\begin{gathered} 16\cdot15=(10+6)\cdot(10+5) \\ 16\cdot15=(10\cdot10)+(10\cdot5)+(6\cdot10)+(6\cdot5) \\ 16\cdot15=100+50+60+30 \\ 16\cdot15=150+90 \\ 16.15=240 \end{gathered}

User XPheRe
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