| Multiplication | 8 | 9 | 10 | 11 | 12 |
| 16 | 8*16 = 128 | 9*16 = 144 | 10*16 = 160 | 11*16 = 176 | 12*16 = 192 |
| 17 | 8*17 = 136 | 9*17 = 153 | 10*17 = 170 | 11*17 = 187 | 12*17 = 204 |
| 18 | 8*18 = 144 | 9*18 = 162 | 10*18 = 180 | 11*18 = 198 | 12*18 = 216 |
| 19 | 8*19 = 152 | 9*19 = 171 | 10*19 = 190 | 11*19 = 209 | 12*19 = 228 |
| 20 | 8*20 = 160 | 9*20 = 180 | 10*20 = 200 | 11*20 = 220 | 12*20 = 240 |
| Multiplication | 7.1 | 7.2 | 7.3 | 7.4 | 7.5 | 7.6 |
| 15.1 | 7.1x15.1 = 107.21 | 7.2x15.1 = 108.72 | 7.3x15.1 = 110.23 | 7.4x15.1 = 111.74 | 7.5x15.1 = 113.25 | 7.6x15.1 = 114.76 |
| 15.2 | 7.1x15.2 = 107.92 | 7.2x15.2 = 109.44 | 7.3x15.2 = 110.96 | 7.4x15.2 = 112.48 | 7.5x15.2 = 114 | 7.6x15.2 = 115.52 |
| 15.3 | 7.1x15.3 = 108.63 | 7.2x15.3 = 110.16 | 7.3x15.3 = 111.69 | 7.4x15.3 = 113.22 | 7.5x15.3 = 114.75 | 7.6x15.3 = 116.28 |
| 15.4 | 7.1x15.4 = 109.34 | 7.2x15.4 = 110.88 | 7.3x15.4 = 112.42 | 7.4x15.4 = 113.96 | 7.5x15.4 = 115.5 | 7.6x15.4 = 117.04 |
| 15.5 | 7.1x15.5 = 110.05 | 7.2x15.5 = 111.6 | 7.3x15.5 = 113.15 | 7.4x15.5 = 114.7 | 7.5x15.5 = 116.25 | 7.6x15.5 = 117.8 |
| 15.6 | 7.1x15.6 = 110.76 | 7.2x15.6 = 112.32 | 7.3x15.6 = 113.88 | 7.4x15.6 = 115.44 | 7.5x15.6 = 117 | 7.6x15.6 = 118.56 |