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8.88ⅹ7x1.25怎么简便计算?
2个回答
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8.88ⅹ7x1.25
=(8+0.8+0.08)×1.25×7
=(8×1.25+0.8×1.25+0.08×1.25)×7
=(10+1+0.1)×7
=11.1×7
=77.7
=(8+0.8+0.08)×1.25×7
=(8×1.25+0.8×1.25+0.08×1.25)×7
=(10+1+0.1)×7
=11.1×7
=77.7
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