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Estimate the sum.
a) $68+53 $
To do: Estimate the sum
Solution:
$68 + 53$
split $68$ as $60 + 8$
split $53$ as $50 + 3$
$60 + 8 + 50 + 3 = 60 + 50 + 8 + 3$
$110 + 11 = 121$
$ 68 + 53 = 121$
Therefore , after estimating the sum we get , $68 + 53 = 121$
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