Share 2 digit regrouping with and without regrouping
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22+39
61
45+25
70
24+37
61
33+39
72
28+14
38
45+28
73
29+44
73
45+19
64
27+42
69
45+43
88
32+65
97
34+45
79
31+38
69
15+41
56
24+75
99
73+25
98
