Question

4.56x2.7十483Ⅹ0.456十19x4.56十0.456x30的简便方法？

Answer 1

这个题首先要把每一项乘积中的数字变成有一样的4.56，之后按照乘法结合律进行计算就可以了。现把做题过程拍成图片如下图

如果最后一项是4.56×30或者0.456×300最后结果计算就比较简单了，因为括号里面的数字相加正好是100。

Answer 2

本题简便计算应用乘法的分配律，过程如下:
4.56×2.7+483x0.456+19*4.56+0.456*30
=0.456*27+0.456*483+0.456*190+0.456*30
=0.456*(27+483+190+30)
=0.456*(510+190+30)
=0.456*730
=4.56*73
=332.88

Answer 3

4.56x2.7+483x0.456+19×4.56+0.456×30
=4.56x2.7+483x4.56x0.1+19×4.56+4.56×30x0.1
=4.56×(2.7+483x0.1+19+30x0.1)
=4.56×(2.7+48.3+19+3)
=4.56×(51+22)
=4.65×73
=332.88

Answer 4

4.56×2.7+483×0.456+19×4.56+0.456×30
=4.56×2.7+48.3×4.56+19×4.56+4.56×3
=(2.7+48.3+19+3)×4.56
=73×4.56
=332.88

Answer 5

4.56×2.7+483×0.456+19×4.56+0.456×30
＝4.56×（2.7+48.3+19+3）
＝4.56×73
＝3

追答

332.88