144×
6
3
16 +
7
5
5
8 ÷
1
8
2 ÷
2
4
14 ×
7
8
2
3
4
630×
6
5
1
2
18 +
6
32 ×
4
1
8
3
7
5
5
1
7
12 +
5
2 -
6
1 -
3
4
4 ÷
8
2
4
80 ×
5
6
8
5 -
7
2
3 ÷
1
3
8
2
1
336×
4
70 ×
5
7
2 ÷
3
6
15 ×
5
4
3
7
2
1
336×
6
8
3
8 ÷
1
8
3 ÷
2
6
1 -
5
4
7