Question

4.7×0.29+0.47×3.8+0.047×33用减便方法怎么计算？

Answer 1

可以都化成是4.7或0.47进行简便计算，下面以0.47为例:
原式=0.47×10×0.29+0.47×3.8+0.47×33÷10
=0.47×2.9+0.47×3.8+0.47×3.3
=0.47×（2.9+3.8+3.3）
=0.47×10
=4.7

Answer 2

你好，这道题的简便算法如下：
4.7×0.29+0.47×3.8+0.047×33
=4.7×0.29+4.7×0.38+4.7×0.33
=4.7×(0.29+0.38+0.33)
=4.7×1
=4.7
望采纳。

Answer 3

算法如下：
原式＝4.7×0.29＋4.7×0.38＋4.7×0.33
＝4.7×（0.29＋0.38＋0.33）
＝4.7×（0.29＋0.71）
＝4.7×1
＝4.7

Answer 4

=0.47x2.9+0.47x3.8+0.47x3.3
=0.47x(2.9+3.8+3.3)
=0.47x(2.9+3.8+3+0.1+0.2)
=0.47x[2.9+0.1+(3.8+0.2)+3]
=0.47x[3+4+3]
=0.47x10
=4.7