Arithmetic: Subtraction of Integers
| Problem | Minuend | Subtrahend | Difference |
| 1 | 781 | 88 | 693 |
| 2 | 3402 | 268 | 3134 |
| 3 | 3400 | 976 | 2424 |
| 4 | 724 | 47 | 677 |
| 5 | 32 | 15 | 17 |
| 6 | 5900 | 663 | 5237 |
| 7 | 43 | 34 | 9 |
| 8 | 2900 | 373 | 2527 |
| 9 | 42 | 18 | 24 |
| 10 | 1602 | 588 | 1014 |
| 11 | 84 | 28 | 56 |
| 12 | 292 | 76 | 216 |
| 13 | 804 | 37 | 767 |
| 14 | 67 | 58 | 9 |
| 15 | 2401 | 942 | 1459 |
| 16 | 65 | 55 | 10 |
| 17 | 593 | 97 | 496 |
| 18 | 96 | 47 | 49 |
| 19 | 134 | 19 | 115 |
| 20 | 85 | 83 | 2 |
| 21 | 1003 | 576 | 427 |
| 22 | 2400 | 133 | 2267 |
| 23 | 66 | 59 | 7 |
| 24 | 74 | 67 | 7 |
| 25 | 721 | 82 | 639 |
| 26 | 5302 | 507 | 4795 |
| 27 | 127 | 67 | 60 |
| 28 | 5400 | 682 | 4718 |
| 29 | 2300 | 191 | 2109 |
| 30 | 2000 | 579 | 1421 |
| 31 | 8905 | 429 | 8476 |
| 32 | 7000 | 257 | 6743 |
| 33 | 447 | 27 | 420 |
| 34 | 4305 | 775 | 3530 |
| 35 | 1800 | 193 | 1607 |
| 36 | 375 | 59 | 316 |
| 37 | 9300 | 146 | 9154 |
| 38 | 991 | 99 | 892 |
| 39 | 175 | 48 | 127 |
| 40 | 6705 | 518 | 6187 |
| 41 | 707 | 47 | 660 |
| 42 | 51 | 16 | 35 |
| 43 | 74 | 37 | 37 |
| 44 | 73 | 17 | 56 |
| 45 | 868 | 18 | 850 |
| 46 | 9801 | 648 | 9153 |
| 47 | 42 | 25 | 17 |
| 48 | 3106 | 877 | 2229 |
| 49 | 26 | 19 | 7 |
| 50 | 841 | 17 | 824 |