crisleigh crisleigh

25-01-2017
Mathematics

contestada

Sue wants to use mental math to solve 7 times 53. What is an expression that she can use?

Respuesta :

conn2255 conn2255

25-01-2017

7*5*10 +
7*3
Off the top of my head like sue

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hdolgin56 hdolgin56

25-01-2017

+2
53
* 7
___ 7 times 3 =21 the add the 2 to 7*5 which equals 35 you add 2 =371
371

Answer Link

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