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14 questions
456 -268 =
178
198
188
288
900 - 749=
185
287
285
151
842 - 593 =
249
349
241
259
614 - 387 =
327
227
237
223
502 - 297 =
310
212
205
290
571 - 152 = _______
491
419
423
623
734 - 573 =
161
261
1,307
241
804 - 773 =
158
142
61
31
138 + 249 = ______
287
397
387
297
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