We should remember these multiplication tables at least up to 30 , that way we can save our precious time for calculation and eliminate counting errors.
| 29 x 1 = 29 | 30 x 1 = 30 |
| 29 x 2 = 58 | 30 x 2 = 60 |
| 29 x 3 = 87 | 30 x 3 = 90 |
| 29 x 4 = 116 | 30 x 4 = 120 |
| 29 x 5 = 145 | 30 x 5 = 150 |
| 29 x 6 = 174 | 30 x 6 = 180 |
| 29 x 7 = 203 | 30 x 7 = 210 |
| 29 x 8 = 232 | 30 x 8 = 240 |
| 29 x 9 = 261 | 30 x 9 = 270 |
| 29 x 10 =290 | 30 x 10 = 300 |
| 26 x 1 = 26 | 27 x 1 = 27 | 28 x 1 = 28 |
| 26 x 2 = 52 | 27 x 2 = 54 | 28 x 2 = 56 |
| 26 x 3 = 78 | 27 x 3 = 71 | 28 x 3 = 84 |
| 26 x 4 = 104 | 27 x 4 = 108 | 28 x 4 = 112 |
| 26 x 5 = 130 | 27 x 5 = 135 | 28 x 5 = 140 |
| 26 x 6 = 156 | 27 x 6 = 162 | 28 x 6 = 168 |
| 26 x 7 = 182 | 27 x 7 = 189 | 28 x 7 = 196 |
| 26 x 8 = 208 | 27 x 8 = 216 | 28 x 8 = 224 |
| 26 x 9 = 234 | 27 x 9 = 243 | 28 x 9 = 252 |
| 26 x 10 = 260 | 27 x 10 = 270 | 28 x 10 = 280 |
| 23 x 1 = 23 | 24 x 1 = 24 | 25 x 1 = 25 |
| 23 x 2 = 46 | 24 x 2 = 48 | 25 x 2 = 50 |
| 23 x 3 = 69 | 24 x 3 = 72 | 25 x 3 = 75 |
| 23 x 4 = 92 | 24 x 4 = 96 | 25 x 4 = 100 |
| 23 x 5 = 115 | 24 x 5 = 120 | 25 x 5 = 125 |
| 23 x 6 = 138 | 24 x 6 = 144 | 25 x 6 = 150 |
| 23 x 7 = 161 | 24 x 7 = 168 | 25 x 7 = 175 |
| 23 x 8 = 184 | 24 x 8 = 192 | 25 x 8 = 200 |
| 23 x 9 = 207 | 24 x 9 = 216 | 25 x 9 = 225 |
| 23 x 10 = 230 | 24 x 10 = 240 | 25 x 10 = 250 |
| 20 x 1 = 20 | 21 x 1 = 21 | 22 x 1 = 22 |
| 20 x 2 = 40 | 21 x 2 = 42 | 22 x 2 = 44 |
| 20 x 3 = 60 | 21 x 3 = 63 | 22 x 3 = 66 |
| 20 x 4 = 80 | 21 x 4 = 84 | 22 x 4 = 88 |
| 20 x 5 = 100 | 21 x 5 =105 | 22 x 5 = 110 |
| 20 x 6 = 120 | 21 x 6 = 126 | 22 x 6 = 132 |
| 20 x 7 = 140 | 21 x 7 = 147 | 22 x 7 = 154 |
| 20 x 8 = 160 | 21 x 8 = 168 | 22 x 8 = 176 |
| 20 x 9 = 180 | 21 x 9 = 189 | 22 x 9 = 198 |
| 20 x 10 = 200 | 21 x 10 = 210 | 22 x 10 = 200 |
| 17 x 1 = 17 | 18 x 1 = 18 | 19 x 1 = 19 |
| 17 x 2 = 34 | 18 x 2 = 36 | 19 x 2 = 38 |
| 17 x 3 = 51 | 18 x 3 = 54 | 19 x 3 = 57 |
| 17 x 4 = 68 | 18 x 4 = 72 | 19 x 4 = 76 |
| 17 x 5 = 85 | 18 x 5 = 90 | 19 x 5 = 95 |
| 17 x 6 = 102 | 18 x 6 = 108 | 19 x 6 = 114 |
| 17 x 7 =119 | 18 x 7 = 126 | 19 x 7 = 133 |
| 17 x 8 = 136 | 18 x 8 = 144 | 19 x 8 = 152 |
| 17 x 9 = 153 | 18 x 9 = 162 | 19 x 9 = 171 |
| 17 x 10 = 170 | 18 x 10 = 180 | 19 x 10 =190 |
| 14 x 1 = 14 | 15 x 1 = 15 | 16 x 1 = 16 |
| 14 x 2 = 28 | 15 x 2 = 30 | 16 x 2 = 32 |
| 14 x 3 = 42 | 15 x 3 = 45 | 16 x 3 = 48 |
| 14 x 4 = 56 | 15 x 4 = 60 | 16 x 4 = 64 |
| 14 x 5 = 70 | 15 x 5 =75 | 16 x 5 = 80 |
| 14 x 6 = 84 | 15 x 6 = 90 | 16 x 6 = 96 |
| 14 x 7 = 98 | 15 x 7 = 105 | 16 x 7 =112 |
| 14 x 8 = 112 | 15 x 8 =120 | 16 x 8 = 128 |
| 14 x 9 = 126 | 15 x 9 = 135 | 16 x 9 =144 |
| 14 x 10 = 140 | 15 x 10 =150 | 16 x 10 = 160 |
| 11 x 1 = 11 | 12 x 1 = 12 | 13 x 1 = 13 |
| 11 x 2 = 22 | 12 x 2 = 24 | 13 x 2 = 26 |
| 11 x 3 = 33 | 12 x 3 = 36 | 13 x 3 = 39 |
| 11 x 4 = 44 | 12 x 4 = 48 | 13 x 4 = 52 |
| 11 x 5 = 55 | 12 x 5 = 60 | 13 x 5 = 65 |
| 11 x 6 = 66 | 12 x 6 = 72 | 13 x 6 = 78 |
| 11 x 7 = 77 | 12 x 7 =84 | 13 x 7 = 91 |
| 11 x 8 = 88 | 12 x 8 = 96 | 13 x 8 = 104 |
| 11 x 9 = 99 | 12 x 9 = 108 | 13 x 9 =117 |
| 11 x 10 = 110 | 12 x 10 = 120 | 13 x 10 = 130 |
| 8 x 1 = 8 | 9 x 1 = 9 | 10 x 1 = 10 |
| 8 x 2 = 16 | 9 x 2 = 18 | 10 x 2 = 20 |
| 8 x 3 = 24 | 9 x 3 = 27 | 10 x 3 = 30 |
| 8 x 4 = 32 | 9 x 4 = 36 | 10 x 4 = 40 |
| 8 x 5 = 40 | 9 x 5 = 45 | 10 x 5 = 50 |
| 8 x 6 = 48 | 9 x 6 = 54 | 10 x 6 = 60 |
| 8 x 7 = 56 | 9 x 7 = 63 | 10 x 7 = 70 |
| 8 x 8 = 64 | 9 x 8 = 72 | 10 x 8 = 80 |
| 8 x 9 = 72 | 9 x 9 = 81 | 10 x 9 = 90 |
| 8 x 10 = 80 | 9 x 10 = 90 | 10 x 10 = 100 |
| 5 x 1 = 5 | 6 x 1 = 6 | 7 x 1 = 7 |
| 5 x2 = 10 | 6 x 2 = 12 | 7 x2 = 14 |
| 5 x 3 = 15 | 6 x 3 = 18 | 7 x 3 = 21 |
| 5 x 4 = 20 | 6 x 4 = 24 | 7 x 4 = 28 |
| 5 x 5 = 25 | 6 x 5 = 30 | 7 x 5 = 35 |
| 5 x 6 = 30 | 6 x 6 = 36 | 7 x 6 = 42 |
| 5 x 7 = 35 | 6 x 7 = 42 | 7 x 7 = 49 |
| 5 x 8 = 40 | 6 x 8 = 48 | 7 x 8 = 56 |
| 5 x 9 = 45 | 6 x 9 = 54 | 7 x 9 = 63 |
| 5 x 10 = 50 | 6 x 10 = 60 | 7 x 10 = 70 |
| 2 x 1 = 2 | 3 x 1 = 3 | 4 x 1 = 4 |
| 2 x 2 = 4 | 3 x 2 = 6 | 4 x 2 = 8 |
| 2 x 3 =6 | 3 x 3 = 9 | 4 x 3 = 12 |
| 2 x 4 = 8 | 3 x 4 = 12 | 4 x 4 = 16 |
| 2 x 5 = 10 | 3 x 5 = 15 | 4 x 5 = 20 |
| 2 x 6 = 12 | 3 x 6 = 18 | 4 x 6 = 24 |
| 2 x 7 = 14 | 3 x 7 = 21 | 4 x 7 = 28 |
| 2 x 8 = 16 | 3 x 8 = 24 | 4 x 8 = 32 |
| 2 x 9 = 18 | 3 x 9 = 27 | 4 x 9 = 36 |
| 2 x 10 = 20 | 3 x 10 = 30 | 4 x 10 = 40 |