3-
1
3 =
8
3
3
4 ×6=
9
2 0.8÷0.01=80
571-402=169 5+(
1
4 +
1
2 )×8=11 10÷
1
9 =90
15÷
3
5 =25
3
8 ÷
1
4 =
3
2 4-1÷3-8×
1
3 =1
0.18÷0.15×0=0
3-
1
3 =
8
3
3
4 ×6=
9
2 0.8÷0.01=80
571-402=169 5+(
1
4 +
1
2 )×8=11 10÷
1
9 =90
15÷
3
5 =25
3
8 ÷
1
4 =
3
2 4-1÷3-8×
1
3 =1
0.18÷0.15×0=0