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1.35x4.2x0.8简便算法

1.35×4.2×0.8 =1.35×0.8×4.2 =1.08×4.2 =1×4.2+0.08×4.2 =4.2+0.336 =4.536 请点个采纳呗,谢谢!

1.35x0.8xX-X=100+128 1.08X-X=228 0.8X=228 X=2850

3.5×0.19+0.35×8.1的简便算法 =3.5×0.19+3.5×0.81 =3.5×(0.19+0.81) =3.5×1 =3.5 就是这样的哈

如图

0.35*1.28*2*0.8 =(0.35*2)*1.28*0.8 =0.7*1.28*0.8 =0.7168

你这个有问题,货车如果是9.4x0.35x2.5,没有一个箱子能放进去哦,一个箱子至少也有0.55米高(或宽)大于0.35哦,否则就要把箱子压扁了哦。

原式=8.7+0.6*2*0.35=8.7+0.6*0.7=8.7+0.42=9.12

=(1.25+0.1)×4.2×0.8 =(1.25×0.8+0.1×0.8)×4.2 =(10+0.08)×4.2 =10×4.2+0.08×4.2 =42+0.336 =42.336

1.35÷(1.35×0.8) =1.35÷135÷0.8 =1÷0.8 =1.25 你好本题已解答,如果满意 请点右下角“采纳答案”。

1.35*4.2*0.8=(1.25+0.1)*4.2*0.8=1.25*4.2*0.8+0.1*4.2*0.8=4.2+0.336=4.536 0.074*1.8*20.5=0.074*1.8*(20+0.5)=0.074*1.8*20+0.074*1.8*0.5=0.075*1.8*20-0.001*1.8*20+0.074*0.9=2.7-0.036+0.0666=2.7306

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