| Subtraction | Addition | Subtraction | Addition | Both Adding and Subtracting |
|---|---|---|---|---|
|
2
12-10
|
22
10+12
|
2
20-18
|
36
24+12
|
24
24+0
|
|
5
15-10
|
50
30+20
|
5
19-14
|
30
13+17
|
2
12-10
|
|
10
20-10
|
70
40+30
|
1
22-21
|
64
52+12
|
98
50+48
|
|
25
50-25
|
100
50+50
|
23
45-22
|
81
68+13
|
8
42-34
|
|
75
99-24
|
99
75+24
|
17
86-69
|
69
35+34
|
114
54+60
|
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