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