Mathematics

Use distributive property and mental math to find the product 7x49


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mia34

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we remember that the distributive propert is a(b+c)=ab+ac 2 ways we can do this is to write 49 as either 40+9 or 50-1 if we do 40+9 7(49)=7(40+9)=7(40)+7(9)=280+63=343 if we do 50-1 7(49)=7(50-1)=7(50)+7(-1)=350-7=343

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