这道数学题怎样简便计算66.6*7.23+99.9*5.18
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![这道数学题怎样简便计算66.6*7.23+99.9*5.18](/uploads/image/z/443029-13-9.jpg?t=%E8%BF%99%E9%81%93%E6%95%B0%E5%AD%A6%E9%A2%98%E6%80%8E%E6%A0%B7%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%9766.6%2A7.23%2B99.9%2A5.18)
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这道数学题怎样简便计算66.6*7.23+99.9*5.18
这道数学题怎样简便计算
66.6*7.23+99.9*5.18
这道数学题怎样简便计算66.6*7.23+99.9*5.18
11.1*(6*7.23)+11.1*(9*5.18)
11.1*(43.38+46.62)
11.1*90
999
66.6*7.23+99.9*5.18
=33.3*2*7.23+33.3*3*5.18
=33.3*(14.46+15.54)
=33.3*30
=999
33.3*2*7.23+33.3*3*5.18
=33.3*(2*7.23+3*5.18)
=33.3*(14.46+15.54)
=33.3*30
=999