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54x125列竖式计算

=6750

式:125 × 50 一一一一一 6250

125×24 =125×(8×3) =125×8×3 =(125×8)×3 =1000×3 =3000

经济数学团队为你解答,满意请采纳!

0.25×32×0.125 =0.25×4×8×0.125 =1×1 =1

39×48×125 =(40-1)×6×8×125 =(40-1)×6×(8×125) =(40-1)×6×1000 =(40-1)×(6×1000) =(40-1)×6000 =40×6000-6000 =24000-6000 =18000

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