
0.74×5.4+7.4×0.36+7.4×0.1用简便方法
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0.74×5.4+7.4×0.36+7.4×0.1用简便方法
0.74×5.4+7.4×0.36+7.4×0.1
=0.74×10×0.54+7.4×0.36+7.4×0.1
=7.4×0.54+7.4×0.36+7.4×0.1
=7.4×(0.54+0.36+0.1)
=7.4×1
=7.4
0.74×5.4+7.4×0.36+7.4×0.1
=0.74×10×0.54+7.4×0.36+7.4×0.1
=7.4×0.54+7.4×0.36+7.4×0.1
=7.4×(0.54+0.36+0.1)
=7.4×1
=7.4
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