帮我计算几道题 能筒算的要筒算 12*(1/2+1/3-1/4)4*0.8*0.25*12.5

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帮我计算几道题 能筒算的要筒算 12*(1/2+1/3-1/4)4*0.8*0.25*12.5
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帮我计算几道题 能筒算的要筒算 12*(1/2+1/3-1/4)4*0.8*0.25*12.5
帮我计算几道题 能筒算的要筒算 12*(1/2+1/3-1/4)4*0.8*0.25*12.5

帮我计算几道题 能筒算的要筒算 12*(1/2+1/3-1/4)4*0.8*0.25*12.5
12*(1/2+1/3-1/4)
=6+4-3
=7
4*0.8*0.25*12.5
=4*0.25*0.8*12.5
=1*10
=10