1. Determine the sum by suitable re arrangement .
6254 + 1297 + 446 + 103
1983 + 647 + 217 + 353
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Answer:
(a) 6254 + 1297 + 446 + 103
= (6254 + 446) + (1297 + 103)
= 6700 + 1400
= 8100
(b) 1983 + 647 + 217 + 353
= (1983 + 217) + (353 + 647)
= 2200 + 1000
= 3200
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