2 -
5
3
2 ×
1
2
7 +
4
336×
6
7
14 +
7
1
15 ×
5
588×
6
3
2
4
1
5
3
7
2
10 +
4
6
3 ÷
6
8 ×
4
2
5
5
7
2 -
1
3
2
42 ×
6
7
20 ×
4
5
2 -
3
1 -
1
12 ×
4
5 -
7
2 ÷
6
3
6 ÷
1
5
2
3
2
5 +
4
1
6
35 ×
7
5