Question

4.6×1.5-0.06×25怎么简便计算？

Answer 1

四点6×1点五，减去零点06×25，等于四点6×1点五，减去1.5，等于1.5乘以括号四点6-1括号，等于一点5×3点六，等于括号1+0点五括号乘以3.6，等于三点6×1+3点6×0点五，等于3.6，加上1.8，等于5.4

Answer 2

计算：
4.6×1.5－0.06×25
=0.46×15－0.02×3×5×5
=0.46×15－0.1×15
=15×(0.46－0.1)
=15×0.36
=10×0.36+5×0.36
=3.6+1.8
=5.4
答题完毕。

Answer 3

4.6×1.5-0.06×25
=2.3*3-1.5
=6.9-1.5

=5.4

Answer 4

简便方法如下：
4.6×1.5-1.5
=1.5×（4.6-1）
=1.5×3.6
=（1+0.5）×3.6
=3.6+1.8
=5.4

Answer 5

这道题可运用乘法结合律及分配律的扩大运用来进行简算。
4.6*1.5-0.06*25
=4.6*5*0.3-0.06*5*5
=23*0.3-0.3*5
=(23-5)*0.3
=18*0.3
=5.4