18.25÷0.25×0.4的简便计算?
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18.25÷0.25×0.4
=18.25÷(1/4)×0.4=
=18.25×4×0.4
=(18×4+0.25×4)×0.4
=(72+1)×0.4
=73×0.4
=29.2
=18.25÷(1/4)×0.4=
=18.25×4×0.4
=(18×4+0.25×4)×0.4
=(72+1)×0.4
=73×0.4
=29.2
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