10-02-2016
Mathematics

contestada

Sue wants to use mental math to find 7 times 53. Write an expression she could use.

Respuesta :

Wildiris Wildiris

10-02-2016

She could multiply 50x7 and than 3x7 and add those two together.
50 x 7 = 350
3 x 7 = 21
21 + 350 = 371

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