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简便运算25x12,125x16

125x16x25=(125*4)*(4*25)=500*100=50000

125x16 =125x(2x8) =(125X8)x2 =1000x2 =2000

25 x 125 x 16 = 25 x 125 x 2 x 8 = (25 x 2) x ( 125 x 8) = 50 x 1000 = 50000

125x16x5 =125×(8×2)×5 =(125×8)×(2×5) =1000×10 =10000

简便计算 125x16x50 =(125×8)×(2×50) =1000×100 =100000

125X50x16 =125x50x8x2 =(125x8)x(50x2) =1000x100 =100000 行家正解,不明白可以追问!祝您学习进步 满意请点击下面的【选为满意回答】按钮,O(∩_∩)O谢谢

125×35×16 =125×35×4×4 =500×140 =70000

原式 =125x(8x2)x15 =(125x8)x(2x15) =1000x30 =30000 供参考。

25x4=100; 125x8=1000; 25x16 =25x4x4 =100x4 =400; 25x48 =25x4x12 =100x12 =1200. 供参考。

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