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0.25x0.125x0.8x0.4简便运算

(0.25×0.4)×(0.125×0.8)=0.1×0.1=0.01 乘法交换律

(0.4+0.8)×0.25×0.125 =0.4×0.25×0.125+0.8×0.25×0.125 =0.1×0.125+0.1×0.25 =0.1×(0.125+0.25) =0.1×0.375 =0.0375

0.125×8×0.25×40 =(0.125×8)×(0.25×40) =1×8×10 =10

(0.125×8-0.25)×8 =(1+0.25)x8 =1.25x8 =10 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

0.25X40+0.25X0.4+0.125X10+0.125X0.8=11.45

可以 3.2÷0.25x125x0.8 =(3.2÷0.25)×(125×0.8) =12.6×100 =1260

0.25×0.8×0.125×0.4 =(0.25×0.4)×(0.8×0.125) =0.1×0.1 =0.01

0.5x0.8x0.02x0.125x25x0.4 =(0.5x0.02)x(0.8x0.125)x(25x0.4) =0.01×0.1×10 =0.01

(12X21x45x10.2) / (15x4x0.7x5.1) = 3x30x3x2 = 540 给你解释: 12/4=3 21/0.7=30 45/15=3 10.2/5.1=2

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