这个算式脱式计算 怎么简便算6.35x0.75+4.65x75%-75%（1|69 + 2|71）x23+25÷71
编辑：Simone
2025-05-18 16:20:25
590 阅读
6.35x0.75+4.65x75%-75%=0.75*(6.35+4.65-1)
=0.75*10
=7.5
（1|69 + 2|71）x23+25÷71
23/69+46/71+25/71
=23/69+(46/71+25/71)
=1/3+1
=4/3
=6.35x0.75+4.65x0.75-0.75
=0.75(6.35+4.65-1)
=0.75*10
=7.5
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