2-Digit Addition
34 + 87 =
121
98 - 43 =
55
378 + 102 =
480
4 + 9 =
13
56 + 67 =
123
78 - 32 =
46
189 + 375 =
564
__ + 9 = 16
7
78 + 43 =
121
66 - 33 =
33
374 + 329 =
703
16 + 7 =
89 + 67 =
156
67 - 29 =
38
349 + 248 =
597
14 - ___ = 9
5
93 + 81 =
174
81 - 67 =
14
214 + 257 =
471
___ - 8 = 11
19