add
500+600
1100
70-20
50
7.9x4.0
31.6
31
1780+220
2000
200-80
120
15.0x2.4
34.5
750-540
210
2040+830
2870
6438-864
5574
4.07x5.3
21.571
892+411
1303
3405+9850
13255
5430-3540
1890
6.46x4.0
25.84
22x5
110
9585+6538
16123
17432-7875
9557
7.07x3.5
24.745
2825x3
8475
7625+40-13x2
7639