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Addition and Subtraction
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189+256
445
Oops!
Okay!
61-48
13
Oops!
Okay!
327+807
1,134
Oops!
Okay!
138+628
766
Oops!
Okay!
271-89
182
Oops!
Okay!
73+49
122
Oops!
Okay!
904-684
220
Oops!
Okay!
805+927
1,732
Oops!
Okay!
423+263
686
Oops!
Okay!
1569+4521
6,090
Oops!
Okay!
78-45
33
Oops!
Okay!
244-152
92
Oops!
Okay!
98+259
357
Oops!
Okay!
205-129
76
Oops!
Okay!
682-669
13
Oops!
Okay!
98+367
465
Oops!
Okay!
100+227
327
Oops!
Okay!
537-295
242
Oops!
Okay!
55+23
78
Oops!
Okay!
132+144
276
Oops!
Okay!
480-62
418
Oops!
Okay!
657-324
333
Oops!
Okay!
560+354
914
Oops!
Okay!
504-37
467
Oops!
Okay!
874-184
690
Oops!
Okay!
962+95
1057
Oops!
Okay!
244+667
911
Oops!
Okay!
56+79
135
Oops!
Okay!
103-69
34
Oops!
Okay!
937-907
30
Oops!
Okay!
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