4乘0.8乘2.4乘1.25
2016-04-10 08:04发布
海天一色1950
解：
4×0.8×2.4×1.25
=4×(2.5-0.1)(0.8×1.25)
=10-0.4
=9.6
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解：
4×0.8×2.4×1.25
=4×(2.5-0.1)(0.8×1.25)
=10-0.4
=9.6
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