Adding
47+36
83
56-22
34
7x4
28
32/8
4
59+62
121
96+83
179
136-49
87
12x15
180
130/5
26
97-43
54
478+324
802
877-632
245
24x32
768
640/20
32
17x13
221
587+943
1,530
985-369
616
314x65
20,410
1,320/33
40
460/4
115
1,874+2,966
4,840
5,476-2,195
3,281
5698x14
79,772
6,720/14
480
36,358