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| 17 + 53 = | 30 + 78 = | 88 + 69 = | 87 + 69 = |
| 9 + 7 = | 57 + 79 = | 45 + 84 = | 14 + 83 = |
| 78 + 30 = | 32 + 3 = | 43 + 88 = | 65 + 71 = |
| 81 + 25 = | 11 + 94 = | 21 + 1 = | 62 + 50 = |
| 33 - 4 = | 23 - 23 = | 1 - 0 = | 32 - 12 = |
| 7 - 1 = | 90 - 41 = | 88 - 68 = | 4 - 2 = |
| 13 - 44 = | 27 - 54 = | 88 - 79 = | 61 - 90 = |
| 65 - 51 = | 61 - 24 = | 86 - 16 = | 99 - 6 = |
| 11 · 5 = | 4 · 10 = | 7 · 5 = | 3 · 9 = |
| 9 · 10 = | 2 · 10 = | 12 · 13 = | 5 · 11 = |
| 10 · 11 = | 8 · 10 = | 3 · 2 = | 3 · 12 = |
| 12 · 7 = | 12 · 7 = | 9 · 12 = | 11 · 7 = |
| 156 : 13 = | 33 : 11 = | 110 : 10 = | 18 : 9 = |
| 99 : 11 = | 132 : 11 = | 143 : 11 = | 39 : 3 = |
| 156 : 12 = | 72 : 8 = | 48 : 8 = | 156 : 12 = |
| 52 : 4 = | 55 : 5 = | 60 : 12 = | 12 : 2 = |