5 +
3
2
4 ÷
4
1
7 +
5
2 ÷
4
5 ×
1
4 +
3
5
5
2
2
5
1
12 ×
4
3
1 -
5
4
10 ×
2
3 ÷
3
1
4 +
1
3
5
2 ÷
2
4