77.5×0.125+0.25×1.25
=77.5×0.125+2.5×0.125
=0.125×(77.5+2.5)
=0.125×80
=0.125×8×10
=1×10
=10
77.5×0.125 0.25×1.25简算
77.5×0.125 0.25×1.25简算
写错啦......是77.5×0.125+0.25×1.25啊
写错啦......是77.5×0.125+0.25×1.25啊
数学人气:500 ℃时间:2020-01-24 12:43:52
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