No Regrouping
66 + 24 =
88
19 + 18 =
37
42 + 53 =
95
115 + 453
568
38 - 26 =
12
33 + 15 =
48
23 + 35 =
58
413 + 23 =
436
832 + 550 =
1,382
20 - 16 =
4
83 + 14 =
97
43 + 34 =
77
39 + 13 =
52
661 + 322 =
983
71 - 49 =
22
13 + 75 =
88
47 + 75 =
122
256 + 44 =
300
919 + 648 =
1,567
65 - 57 =
8
60 + 39 =
99
66 + 73 =
139
701 + 89 =
790
899 + 523 =
1,422
91 - 47 =
44