Add without Regrouping
23+15
38
29+14
43
45-22
23
32-18
14
27+36
63
41+28
69
57+28
85
63-31
32
71-49
22
85-47
38
52+15
67
68+27
95
82-40
42
64-27
37
59+28
87
34+25
59
46+38
84
58-26
32
83-58
25
73-28
45
48+31
79
76+23
99
94-52
42
92-67
25
68+30
98