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5 votes
Two different ways you estimate 586-321

User Mortimer
by
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1 Answer

4 votes

Answer:

Quick estimate: 300; better estimate: 260

Explanation:

Rough estimate: round off 586 and 321, ending up with 600 - 300, or 300.

Better estimate: round off 586 to 580 and 321 to 320. Then 580 - 320 is 260.


User Gasper
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7.6k points