Question

7.06x2.4-5.7怎么简便计算？

Answer 1

7.06x2.4-5.7

=(7+0.06)x(2+0.4)-5.7

=7x(2+0.4)+0.06x(2+0.4)-5.7

=14+2.8+0.12+0.024-5.7

=16.944-5.7

=11.244

按照有括号的先算括号里面的， 没有括号时先算乘除法， 后算加减法的顺序计算：

7.06x2.4-5.7

=16.944-5.7

=11.244

Answer 2

7.06x2.4-5.7
=7*2.4+0.06*2.4-5.7
=16.8-5.7+0.144
=11.1+0.144
=11.244