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27.3x25x0.4简便计算

25X4=|0O 25x0.4=|0 10x27.3=273 |25X8=|000,25X4=|00应记住

 16x(25x0.4)

25.25x0.4 =(25+0.25)x0.4 =25x0.4+0.25x0.4 =10+0.1 =10.1 祝天天向上。

3.25x0.6+0.4 =(3+0.25)×0.6+0.4 =3×0.6+0.25×0.6+0.4 =1.8+0.15+0.4 =2.2+0.15 =2.35

25.25x0.4 =25x0.4+0.25x0.4 =10+0.1 =10.1

=4×25×0.37 =100×0.37 =37

(27.7-85.4/7)x0.4简便计算 =(27.8-12.2)x0.4 =15.6x0.4 =6.24

=0.3×(2.5×0.4) =0.3×1 =0.3

=20

=27*(96+4) =27*100 =2700

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