Give a rough estimate ( by rounding off to the nearest hundreds)
and also a closer estimate ( by rounding off to the nearest tens )
1. 438 + 332 + 4,215
2. 4,78,539 – 47, 556
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Answer:
For hundreds
1.4+3+2
2.5-5
For tens
1.3+3+2
2.3-5