3
3
20 ×
5
4
24 ×
2
5 ×
1
2 ÷
2
4
5 ÷
1
3
5
4 ×
1
3 ÷
3
5
4
6 ×
2
4
1
10 ×
2
5
3
5
5
6 ×
2
3
4 ×
1
4