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Study
Addition & Subtraction
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332 - 139
193
Oops!
Okay!
452 + 362
814
Oops!
Okay!
520 + 298
818
Oops!
Okay!
437 + 275
712
Oops!
Okay!
432 - 234
198
Oops!
Okay!
468 - 291
177
Oops!
Okay!
436 + 256
692
Oops!
Okay!
508 + 124
632
Oops!
Okay!
999 - 457
542
Oops!
Okay!
789 - 374
415
Oops!
Okay!
137 + 720
857
Oops!
Okay!
789 + 35
824
Oops!
Okay!
502 - 79
423
Oops!
Okay!
345 + 134
479
Oops!
Okay!
580 - 379
201
Oops!
Okay!
502 - 79
423
Oops!
Okay!
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