18.76乘以9.9加18.76(简便运算).

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18.76乘以9.9加18.76(简便运算).

18.76乘以9.9加18.76(简便运算).
18.76乘以9.9加18.76(简便运算).

18.76乘以9.9加18.76(简便运算).
18.76*9.9+18.76
=18.76*9.9+18.76*1
=18.76*(9.9+1)
=18.76*10.9
=18.76*(10+0.9)
=18.76*10+18.76*0.9
=187.6+18.76*(1-0.1)
=187.6+(18.76*1-18.76*0.1)
=187.6+18.76-1.876
=204.484

18.76*9.9+18.76
=18.76*9.9+18.76*1
=18.76*(9.9+1)
=18.76*10.9
=204.484
这是乘法分配律哦!

204.484

你想死啊。麻痹,我才不告诉你了滚比。