| Multiplication | 9 | 10 | 11 | 12 | 13 |
| 16 | 9*16 = 144 | 10*16 = 160 | 11*16 = 176 | 12*16 = 192 | 13*16 = 208 |
| 17 | 9*17 = 153 | 10*17 = 170 | 11*17 = 187 | 12*17 = 204 | 13*17 = 221 |
| 18 | 9*18 = 162 | 10*18 = 180 | 11*18 = 198 | 12*18 = 216 | 13*18 = 234 |
| 19 | 9*19 = 171 | 10*19 = 190 | 11*19 = 209 | 12*19 = 228 | 13*19 = 247 |
| 20 | 9*20 = 180 | 10*20 = 200 | 11*20 = 220 | 12*20 = 240 | 13*20 = 260 |
| Multiplication | 8.1 | 8.2 | 8.3 | 8.4 | 8.5 | 8.6 |
| 15.1 | 8.1x15.1 = 122.31 | 8.2x15.1 = 123.82 | 8.3x15.1 = 125.33 | 8.4x15.1 = 126.84 | 8.5x15.1 = 128.35 | 8.6x15.1 = 129.86 |
| 15.2 | 8.1x15.2 = 123.12 | 8.2x15.2 = 124.64 | 8.3x15.2 = 126.16 | 8.4x15.2 = 127.68 | 8.5x15.2 = 129.2 | 8.6x15.2 = 130.72 |
| 15.3 | 8.1x15.3 = 123.93 | 8.2x15.3 = 125.46 | 8.3x15.3 = 126.99 | 8.4x15.3 = 128.52 | 8.5x15.3 = 130.05 | 8.6x15.3 = 131.58 |
| 15.4 | 8.1x15.4 = 124.74 | 8.2x15.4 = 126.28 | 8.3x15.4 = 127.82 | 8.4x15.4 = 129.36 | 8.5x15.4 = 130.9 | 8.6x15.4 = 132.44 |
| 15.5 | 8.1x15.5 = 125.55 | 8.2x15.5 = 127.1 | 8.3x15.5 = 128.65 | 8.4x15.5 = 130.2 | 8.5x15.5 = 131.75 | 8.6x15.5 = 133.3 |
| 15.6 | 8.1x15.6 = 126.36 | 8.2x15.6 = 127.92 | 8.3x15.6 = 129.48 | 8.4x15.6 = 131.04 | 8.5x15.6 = 132.6 | 8.6x15.6 = 134.16 |