Use mental math to estimate the unknown number. 4022/8=r

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asked Jun 9, 2018 14.6k views

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Anurag Bhalekar · Answer 1 · 2018-06-14T08:17:18+0000

well you know 5 times 8 is 40 so you can assume it's around 500, and the closest multiple of 8 to 22 is 24 which is 8 times 3, so can safely assume that r is around 503

Use mental math to estimate the unknown number. 4022/8=r

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