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Sue wants to use mental math to solve 7 times 53. What is an expression that she can use?
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Apr 5, 2018
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Sue wants to use mental math to solve 7 times 53. What is an expression that she can use?
Mathematics
middle-school
Eduardo Duran Diaz
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Eduardo Duran Diaz
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multiplication.......................
Samuel O
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Apr 7, 2018
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Samuel O
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53 = (10 x 5) + 3
7 x 53 = (7 x 5 x 10) + (7 x 3)
7 x 5 x 10 = 35 x 10 = 350
7 x 3 = 21
350 + 21 = 371
Shanu Gupta
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Apr 11, 2018
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Shanu Gupta
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