1
Question
Find the
sum by suitable rearrangement:
(a) 837 +
208 + 363 (b) 1962 + 453 + 1538 + 647
Find the sum by suitable rearrangement:
(a) 837 + 208 + 363 (b) 1962 + 453 + 1538 + 647
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Solution
(a) 837 +
208 + 363 = (837 + 363) + 208
= 1200 + 208 = 1408
(b) 1962 +
453 + 1538 + 647 = (1962 + 1538) + (453 + 647)
= 3500 + 1100 = 4600
(a) 837 + 208 + 363 = (837 + 363) + 208
= 1200 + 208 = 1408
(b) 1962 + 453 + 1538 + 647 = (1962 + 1538) + (453 + 647)
= 3500 + 1100 = 4600
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