Addition
5 + 5
10
10-10
0
1/2 + 1/2
1 or 2/2
1 x 1
1
- 1
negative
23 + 17
40
29-17
12
5/15 + 4/15
9/15
0 x 20300
0
100
positive
49 + 39
88
50-13
37
10/20 + 8/20
18/20
3 x 2
6
300
positive
123 + 47
170
239-117
122
30/45 + 13/45
43/45
5 x 4
20
-45
negative
540 + 275
815
785-215
570
64/150 + 74/150
138/150
10 x 8
80
∞
Positive