1.26*3.7+12.6*0.62+0.126 脱式简便计算

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1.26*3.7+12.6*0.62+0.126 脱式简便计算
1.26*3.7+12.6*0.62+0.126 脱式简便计算

1.26*3.7+12.6*0.62+0.126 脱式简便计算
1.26*3.7+12.6*0.62+0.126
=1.26*3.7+12.6*6.2+1.26
=1.26*(3.7+6.2)
=1.26*9.9
=1.26*(10-0.1)
=1.26*10-1.26*0.1
=12.6-0.126
=12.474

原式
=12.6×0.37+12.6×0.62+12.6×0.01)
=12.6×(0.37+0.62+0.01)
=12.6×1
=12.6

1.26*3.7+12.6*0.62+0.126
=1.26(3.7+6.2+0.1)
=1.26(10)
=12.6

1.26*3.7+12.6*0.62+0.126
=1.26*3.7+12.6*6.2+1.26*0.1
=1.26*(3.7+6.2+0.1)
=1.26*10
=12.6
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