72.4-72.4×0.98怎么巧算?
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![72.4-72.4×0.98怎么巧算?](/uploads/image/z/432449-17-9.jpg?t=72.4-72.4%C3%970.98%E6%80%8E%E4%B9%88%E5%B7%A7%E7%AE%97%3F)
72.4-72.4×0.98怎么巧算?
72.4-72.4×0.98怎么巧算?
72.4-72.4×0.98怎么巧算?
=72.4×(1-0.98)
=72.4-0.02
=1.448
72.4x(1-0.98)
=72.4x0.02
=1.448
=72.4×(1-0.98)
=72.4-0.02
=1.448
=72.4*(1-0.98)=72.4*2/100
=1.48
72.4*5*1-72.4*0.98=72.4*(1-0.98)=72.4*0.02=1.448