Addition
68+30
98
81-27
54
100 or 104
100
6 x 9
54
93/31
3
87+82
169
70-28
42
12.5 or 12.25
12.25
11 x 33
363
96/6
16
115+895
1010
569-352
217
-12 or -10
-10
42 x 12
504
68/17
4
487+968
1455
932-139
793
-15.5 or 20
-15.5
48 x 46
2208
1512/63
24
5197+7970
13167
7633-5605
2028
-24.75 or 23
23
219 x 734
160746
33375/267
125