Question

4.32×7.3+0.27×42.3简便计算？

Answer 1

计算
4.32*7.3+0.27*42.3
=4.32*7.3+2.7*4.32
=4.32*(7.3+2.7)
=4.32*10
=43.2

Answer 2

4.32×7.3+0.27×43.2
＝4.32×7.3+2.7×4.32…(说明，把0.27×10＝2.7，43.2÷10＝
4.32)
＝4.32×(7.3+2.7)
＝4.32×10
＝43.2
究竟是4.23，还是4.32？

Answer 3

4.32×7.3+0.27×42.3
＝43.2×0.73+0.27×42.3
＝（0.73+0.27）×42.3
＝1×42.3
＝42.3

Answer 4

4.32×7.3+0.27×42.3
=4.32×7.3+0.27×10×4.32
=4.32×（7.3+0.27×10）
=4.32×10
=43.2

Answer 5

可以移动计算等于：4.23x7.3+4.23x10x0.27＝4.23x（7.3+10x0.27）＝4.23x（7.3+2.7）＝4.23x（7.3＋2.7）＝4.23x10＝42.3