
1.25X0.45十0.125X4.5十12.5x0.91用简便方法怎么计算?
2个回答
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1.25X0.45十0.125X4.5十12.5x0.91
=1.25×(0.45+0.45)+12.5×0.91
=1.25×0.9+1.25×9.1
=1.25×(0.9+9.1)
=1.25×10
=12.5
=1.25×(0.45+0.45)+12.5×0.91
=1.25×0.9+1.25×9.1
=1.25×(0.9+9.1)
=1.25×10
=12.5
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