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OpenStudy (jokersmart):
Describe the best way to solve 27 x 4 using mental math.
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OpenStudy (babylove18):
4 times 20 then 4 times 7 and add them together
imqwerty (imqwerty):
^
OpenStudy (babylove18):
4*20= 80 + 4*7 = 28 so 80 + 28 = 108
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