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# Find the sum by suitable rearrangement a837plus208plus363 b1962plus453plus1538plus647

1. Find the sum by suitable rearrangement:
(a) 837 + 208 + 363                        (b) 1962 + 453 + 1538 + 647

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Sum by suitable rearrangement:

(a) 837 + 208 + 363

$837 + 208 + 363 =837 + 363+ 208$

$= (837 + 363)+ 208$

$= 1200 + 208$

$= 1408$

(b) 1962 + 453 + 1538 + 647

$1962 + 453 + 1538 + 647 = 1962+ 1538 + 453 + 647$

$= (1962+ 1538) + (453 + 647)$

$= 3500 + 1100$

$= 4600$

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