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48×2×25×125简便计算

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48×2×25×125简便计算 =8x4x3x25x125 =(8x125)x(4x25)x3 =1000x100x3 =300000

25x48x125 =25x6x8x125 =150x1000 =150000

(125×25)×4 =125×(25×4) =125×100 =12500

解: 125×25×25 =5^3 * 5^2 * 5^2 =5^(3+2+2) =5^7

125X48 =125X8X6 =1000X6 =6000

96×25×125 =3×4×8×25×125 =3×100×1000 =300 000

先分别算2×125和8×5 2×125×8×5 =250×40 =10000

=(8乘125)乘9乘25 =9000乘25 =225000

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