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Mathematics 8 Online
OpenStudy (anonymous):

Gustav is using front-end estimation. In estimating , Gustav follows the steps below. Where did he go wrong? Step 1: 72 - 32 = 40 Step 2: 0.93 - 0.07 1 Step 3: 40 - 1 = 39 Step 4: 72.93 - 32.07 39

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