Question

0.6ⅹ6x5ⅹ2.5简便方法？

0.6×6×5×2.5的简便方法 “

Answer 1

0.6×6×5×2.5的简便方法:

答：0.6×6×5×2.5

= (0.6×5)×(6×2.5) 

=3×15

=45

 

Answer 2

先把0.6×6结果计算出来为3.6，再把3.6拆成4×0.9，原式可化作0.9×4×5×2.5，优先计算4×2.5为10，再计算0.9×5为4.5，再把两个相乘得到结果45。

Answer 3

0.6ⅹ6x5ⅹ2.5
=0.6ⅹ6x5ⅹ2.5
=6*6*0.5*2.5
=18*2.5
=9*5
=45

Answer 4

由题可知，得运用乘法的交换律，调换一下他们的顺序：
0.6×6×5×2.5
=0.6×5×6×2.5
=（0.6×5）×（6×2.5）
=3×15
=45
所以答案是45

Answer 5

这道题可运用乘法交换律和结合律进行简便计算。计算如下:
0.6×6×5×2.5
=(0.6×2.5)×(6×5)
=1.5×30
=45