【99+17分之16】乘以34用简算
【99+17分之16】乘以34用简算
100*34-1/17*34=3398
=[(99+16/17+1/`7-1/`7)]×34
=(100-1/17)x34
=3400-2
=339811分之5乘以20分之1加11分之3乘以2分之1加11分之5乘以5分之1用简算= 5/11x1/20+3/11x1/2+5/11x1/5
=5/11x1/20+(3/11+2/11-2/11)x1/2+5/11x1/5
=5/11x(1/20+1/2...
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=[(99+16/17+1/`7-1/`7)]×34
=(100-1/17)x34
=3400-2
=3398
收起
100*34-1/17*34=339811分之5乘以20分之1加11分之3乘以2分之1加11分之5乘以5分之1用简算