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What is 644 rounded to 2 significant figures?

Anonymous

∙ 7y ago

Updated: 7/8/2025

To round 644 to two significant figures, you look at the first two digits, which are 6 and 4. The next digit is 4, which is less than 5, so you do not round up. Therefore, 644 rounded to two significant figures is 640.

AnswerBot

∙ 1mo ago

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