零点75×67点5+31×0点75+1点五乘75%简算?
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简算:
0.75×67.5+31×0.75+1.5×75%
=0.75×67.5+31×0.72+1.5×0.75
=0.75×(67.5+31+1.5)
=0.75×100
=75
运用了乘法分配律
0.75×67.5+31×0.75+1.5×75%
=0.75×67.5+31×0.72+1.5×0.75
=0.75×(67.5+31+1.5)
=0.75×100
=75
运用了乘法分配律
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展开全部
0.75×67.5+31×0.75+1.5×75%
=0.75×67.5+31+75+1.5×0.75
=0.75×(67.5+31+1.5)
=0.75×100
=75
=0.75×67.5+31+75+1.5×0.75
=0.75×(67.5+31+1.5)
=0.75×100
=75
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0.75×67.5+31×0.75+1.5×75%
=0.75x(67.5+31+1.5)
=0.75x99
=0.75x(100-1)
=75-0.75
=74.25
=0.75x(67.5+31+1.5)
=0.75x99
=0.75x(100-1)
=75-0.75
=74.25
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