Question

by suitable arrangements,find the sum 723,834,66,277

Answer 1

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Sunday, 4 March 2012
CBSE Class 6th ( VI) Mathematics Chapter 2. Whole Numbers : Exercise 2.2
Question 1. Find the sum by suitable rearrangement:
(a) 837 + 208 + 363 (b) 1962 + 453 + 1538 + 647
Answer:
(a) 837+208+363
= (837+363)+208
= 1200+208
= 1408



(b) 1962 + 453 + 1538 + 647
= 1962 + 647+ 453 + 1538
= (1962 +1538) + (647+453)
= (3500)+(1100)
= 4400

Answer 2

(723+277)+(834+66)
1000+900
1900