用你喜欢的方法计算 5 8 + 5 4 ×60%12.5×25%×20+3.20.875×25+75×87.5%6.7-

5
8 +
5
4 × 60%
=
5
8 +
5
4 ×
3
5
=
5
8 +
3
4
=
5
8 +
6
8
=
11
8
12.5×25%×20+3.2
=12.5×20×0.25+3.2
=250×0.25+3.2
=62.5+3.2
=65.7
0.875×25+75×87.5%
=0.875×25+75×0.875
=0.875×（25+75）
=0.875×100
=87.5
6.7-3.25+133.3-0.75
=（6.7+13.3）-（3.75+0.75）
=20-4
=16