| Multiplication | 16 | 17 | 18 | 19 | 20 |
| 13 | 16*13 = 208 | 17*13 = 221 | 18*13 = 234 | 19*13 = 247 | 20*13 = 260 |
| 14 | 16*14 = 224 | 17*14 = 238 | 18*14 = 252 | 19*14 = 266 | 20*14 = 280 |
| 15 | 16*15 = 240 | 17*15 = 255 | 18*15 = 270 | 19*15 = 285 | 20*15 = 300 |
| 16 | 16*16 = 256 | 17*16 = 272 | 18*16 = 288 | 19*16 = 304 | 20*16 = 320 |
| 17 | 16*17 = 272 | 17*17 = 289 | 18*17 = 306 | 19*17 = 323 | 20*17 = 340 |
| Multiplication | 15.1 | 15.2 | 15.3 | 15.4 | 15.5 | 15.6 |
| 12.1 | 15.1x12.1 = 182.71 | 15.2x12.1 = 183.92 | 15.3x12.1 = 185.13 | 15.4x12.1 = 186.34 | 15.5x12.1 = 187.55 | 15.6x12.1 = 188.76 |
| 12.2 | 15.1x12.2 = 184.22 | 15.2x12.2 = 185.44 | 15.3x12.2 = 186.66 | 15.4x12.2 = 187.88 | 15.5x12.2 = 189.1 | 15.6x12.2 = 190.32 |
| 12.3 | 15.1x12.3 = 185.73 | 15.2x12.3 = 186.96 | 15.3x12.3 = 188.19 | 15.4x12.3 = 189.42 | 15.5x12.3 = 190.65 | 15.6x12.3 = 191.88 |
| 12.4 | 15.1x12.4 = 187.24 | 15.2x12.4 = 188.48 | 15.3x12.4 = 189.72 | 15.4x12.4 = 190.96 | 15.5x12.4 = 192.2 | 15.6x12.4 = 193.44 |
| 12.5 | 15.1x12.5 = 188.75 | 15.2x12.5 = 190 | 15.3x12.5 = 191.25 | 15.4x12.5 = 192.5 | 15.5x12.5 = 193.75 | 15.6x12.5 = 195 |
| 12.6 | 15.1x12.6 = 190.26 | 15.2x12.6 = 191.52 | 15.3x12.6 = 192.78 | 15.4x12.6 = 194.04 | 15.5x12.6 = 195.3 | 15.6x12.6 = 196.56 |