Determine the sum by suitable rearrangement : (a) 15409 + 178 + 591 + 322 (b) 2359 + 10001 + 2641 + 9999
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Answer:
16500 and 25,000 respectively.
Step-by-step explanation:
[178 + 322] + [15409 + 591]
= 500 + 16000
= 16500
[2359+2641]+[10001+9999]
= 5000 + 20,00
= 25,000
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