| Multiplication | 16 | 17 | 18 | 19 | 20 |
| 5 | 16*5 = 80 | 17*5 = 85 | 18*5 = 90 | 19*5 = 95 | 20*5 = 100 |
| 6 | 16*6 = 96 | 17*6 = 102 | 18*6 = 108 | 19*6 = 114 | 20*6 = 120 |
| 7 | 16*7 = 112 | 17*7 = 119 | 18*7 = 126 | 19*7 = 133 | 20*7 = 140 |
| 8 | 16*8 = 128 | 17*8 = 136 | 18*8 = 144 | 19*8 = 152 | 20*8 = 160 |
| 9 | 16*9 = 144 | 17*9 = 153 | 18*9 = 162 | 19*9 = 171 | 20*9 = 180 |
| Multiplication | 15.1 | 15.2 | 15.3 | 15.4 | 15.5 | 15.6 |
| 4.1 | 15.1x4.1 = 61.91 | 15.2x4.1 = 62.32 | 15.3x4.1 = 62.73 | 15.4x4.1 = 63.14 | 15.5x4.1 = 63.55 | 15.6x4.1 = 63.96 |
| 4.2 | 15.1x4.2 = 63.42 | 15.2x4.2 = 63.84 | 15.3x4.2 = 64.26 | 15.4x4.2 = 64.68 | 15.5x4.2 = 65.1 | 15.6x4.2 = 65.52 |
| 4.3 | 15.1x4.3 = 64.93 | 15.2x4.3 = 65.36 | 15.3x4.3 = 65.79 | 15.4x4.3 = 66.22 | 15.5x4.3 = 66.65 | 15.6x4.3 = 67.08 |
| 4.4 | 15.1x4.4 = 66.44 | 15.2x4.4 = 66.88 | 15.3x4.4 = 67.32 | 15.4x4.4 = 67.76 | 15.5x4.4 = 68.2 | 15.6x4.4 = 68.64 |
| 4.5 | 15.1x4.5 = 67.95 | 15.2x4.5 = 68.4 | 15.3x4.5 = 68.85 | 15.4x4.5 = 69.3 | 15.5x4.5 = 69.75 | 15.6x4.5 = 70.2 |
| 4.6 | 15.1x4.6 = 69.46 | 15.2x4.6 = 69.92 | 15.3x4.6 = 70.38 | 15.4x4.6 = 70.84 | 15.5x4.6 = 71.3 | 15.6x4.6 = 71.76 |