0.34×12.5+0.125×66的简便算法

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0.34×12.5+0.125×66的简便算法
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0.34×12.5+0.125×66的简便算法
0.34×12.5+0.125×66的简便算法

0.34×12.5+0.125×66的简便算法
原式=0.125×34+0.125×66
=0.125×(34+66)
=0.125×100
=12.5

=0.34*12.5+12.5*0.66=12.5*(0.34+0.66)=12.5*1=12.5

0.34*12.5+0.125*66
=0.34*0.125*100+0.125*66
=34*0.125+0.125*66
=0.125*(34+66)
=0.125*100
=12.5

0.34×12.5+0.125×66=0.34×100×12.5×0.01+0.125×66=34×0.125+0.125×66=0.125×(34+66)=12.5

原式=0.125×(0.34×100+66)
=0.125×(34+66)
=0.125×100
=12.5

0.34*12.5+0.125*66
=0.125*34+0.125*66
=0.125*(34+66)
=0.125*100
=12.5

0.125×34+0.125×66
=0.125×(34+66)
=0.125×100
=12.5