
46.5减3.2乘1.4的简算法
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简便方法计算如下:
46.5-3.2×1.4
=46.5-3.2×(1+0.4)
=46.5-3.2-3.2×0.4
=46.5-3.2-1.28
=43.3-1.2-0.08
=42.1-0.08
=42.02
46.5-3.2×1.4
=46.5-3.2×(1+0.4)
=46.5-3.2-3.2×0.4
=46.5-3.2-1.28
=43.3-1.2-0.08
=42.1-0.08
=42.02
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