22×0.375+2×3/8
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22×0.375+2×3/8=22×0.75×0.5+3/4=0.75×11+0.75=0.75×(11+1)=0.75×12=9
咨询记录 · 回答于2022-10-13
22×0.375+2×3/8
22×0.375+2×3/8=22×0.75×0.5+3/4=0.75×11+0.75=0.75×(11+1)=0.75×12=9
同学,后面是加号没写错吧?
如果后面是减号,这道题就更简便了。