28 ×
7
4
3
3
12 ×
6
2
40 ×
5
8
1
1
12 ×
4
8 ÷
8
3 ÷
2
40 ×
5
126×
3
6
1
7
7
3
1
6
8
7
2 ÷
2
504×
4
40 ×
5
2
2
35 ×
7
5
5
24 ×
4
6
1
3
8
30 ×
6
5
3 ÷
1
3
2 ÷
4
8
7
8 ×
2
5
768×
2
8
196×
7
5 ÷
1
12 ×
3
6
4
8
6
7
1
5
4
6 ×
2
3
3 ÷
1
3
4
112×
2
8
7
30 ×
5
6