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112+288×4的巧算
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112+288×4的巧算=112+(300-12)×4=112+300×4-12×4=112+1200-48=112-48+1200=64+1200=1264
咨询记录 · 回答于2022-12-07
112+288×4的巧算
112+288×4的巧算=112+(300-12)×4=112+300×4-12×4=112+1200-48=112-48+1200=64+1200=1264
运用拆分法和乘法分配率来巧算哦
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