2 ÷
2
4
5 ÷
5
2 -
1
3
20 ×
4
5 ×
5
1
5 +
3
2
5
1
24 ×
3
11 +
2
4
3 ÷
3
5 +
2
4
5
1
1
1
3
2
9 +
4
5