能巧算的要巧算(急,明天就交了!)

问题描述:

能巧算的要巧算(急,明天就交了!)
100.1+10.82+0.18-90.01 40-4.72+5.28 (4.32-0.87)+(1.68-1.13) 81.1+36.57-(31.7-13.43) 25.46-4.67-5.33+4.54

100.1+10.82+0.18-90.01 =21
40-4.72-5.28 =30
(4.32-0.87)+(1.68-1.13)=4
81.1+36.57-(31.1-13.43) =100
25.46-4.67-5.33+4.54=20