Friday, 7 February 2014

ARITHMETICS A1

Evaluate  54 + 22 – 8 – 13 – 9 + 14

Solution

= 54 + 22 – 8 – 13 – 9 + 14

= 54 + 22 + 14 – 8 – 13 – 9

= 54 + 22 + 14 – (8 + 13 + 9)

= 90 – 30

= 60

TRY THIS.....


Evaluate  50 + 24 – 17 – 8 – 15 + 16

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