计算题(2017年山东省临沂市)

64-(3.5-0.82-0.18)

答案解析

18.64-(3.5-0.82-0.18)

=18.64-3.5+0.82+0.18

=18.64-3.5+(0.82+0.18)

=18.64-3.5+1

=16.14

讨论