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Find the sum by suitable rearrangement: a. 837 + 208 + 363 = (837 + 363) + 208

+2 votes
in Mathematics by kratos

Find the sum by suitable rearrangement:

a. 837 + 208 + 363 = (837 + 363) + 208

b. 1962 + 453 + 1538 + 647 = (1962 + 1538) + (453 + 647)

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+5 votes
by kratos
 
Best answer

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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