Nattybug13 Nattybug13

11-12-2014
Mathematics

Answered

a) Estimate 49% of 162.
b) Use mental math to calculate 49% of 162.

Answer :

ollieboyne ollieboyne

11-12-2014

49% = 50% - 1%

So half of 162 is 81. 1% of 162 is about 2

So 49% ~ 81 - 2 ~79

(actual value is 79.38)

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