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10 questions
2589 + 4587
7965
7176
7854
7148
8542 - 7548
879
986
994
876
6542 + 3589
9874
9965
9865
10131
9865 - 7854
2013
2456
2011
2458
7412 + 9854
18454
17266
16547
15426
8547 - 8236
365
478
589
311
78965 + 89563
168528
178652
154789
147852
4785 - 3652
1479
1458
1133
1233
2547 + 9652
12199
13652
14789
16528
2589 - 1478
1258
1111
2222
1569
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