Question

4.6乘6.5加3.5怎么简便计算？

怎么简便计算

Answer 1

你好：

解：

4.6×6.5+3.5

=4.6×（10-3.5）+3.5

=4.6×10-4.6×3.5+3.5

=46-3.5×（4.6-1）

=46-3.5×3.6

=46-3.5×（4-0.4）

=46-3.5×4+3.5×0.4

=46-14+1.4

=33.4

Answer 2

4.6×6.5-3.5
解：=4.6×（10-3.5）-3.5
=4.6×10-4.6×3.5-3.5
=46-（4.6×3.5+3.5）
=46-（4.6+1）×3.5
=46-5.6×3.5
=26.4