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( 280@x3)x4怎么写脱式计算

( 280-40x3)x4 =(280-120)×4 =160×4 =640

你好,很高兴为你解答 306x3x4=脱式计算 =918x4 =3672 满意采纳哦!

(1/12+2/51)x3x4 =1/12x3x4+2/51x3x4 =1+8/17 =1又8/17

0.25X3.2X1.25 =0.25X4X0.8X1.25 =1X1=1

810÷(81x3) =810÷81÷3 =10÷3 =10/3 =3又3分之1

15x397 =15x(400-3) =15x400-15x3 =6000-45 =5955

脱式计算即递等式计算,把计算过程完整写出来的运算,也就是脱离竖式的计算。 137十155X3 =137+465 =602。

125x3x2 =375×2 =750

1.25×0.8×3.37 =1×3.37 =3.37

原式 =5/13x3x1/4+8/13x1/4 =15/13x1/4+8/13x1/4 =(15/13+8/13)x1/4 =23/13x1/4 =23/52 供参考。

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