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9.6乘以25怎样简便计算

9.6乘以25 =(10-0.4)×25 =10×25-0.4×25 =250-10 =240

9.6×25 =(10-0.4)×25 =10×25-0.4×25 =250-10 =240

你好1 6/25÷9+6/25×8/9 =6/25×1/9+6/25×8/9 =(1/9+8/9)×

6x2x(6x9)这个什么简便计算,如果硬说有只能54x6x2=324×2二648

9.25×1.6-0.6×9.25 =9.25×(1.6-0.6) =9.25×1 =9.25

0.4乘9.6乘2.5的简便计算 =0.4x2.5x9.6 =1x9.6 =9.6

9.6×6=(9+0.6)×6=54+3.6=57.6 1.2×6=(1+0.2)×6=6+1.2=

2.6×9.9 =2.6×(10-0.1) =26-0.26 =25.74

这提为什么这么做,我不懂。教一下我一步一步的怎么做,。

=0.25×4×9.67 =1×9.67 =9.67

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