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What is a ten strategy for 88 plus 31?

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Anonymous

∙ 14y ago
Updated: 8/18/2019

88 -> 90 - 2

31 -> 30 + 1

88 + 31 = (90-2) + (30+1) = 90 + 30 - 2 + 1 = 120 - 2 + 1 = 120 - 1 = 119

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∙ 14y ago
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