Take one group away from ten
Nine groups are ten groups minus one. For nine groups of seven, start at seventy and remove seven. This gives a useful check even when you think you remember the answer.
9 × 7 = 10 × 7 − 7 = 70 − 7 = 63
The complete table
| Fact | Answer |
|---|---|
| 9 × 1 | 9 |
| 9 × 2 | 18 |
| 9 × 3 | 27 |
| 9 × 4 | 36 |
| 9 × 5 | 45 |
| 9 × 6 | 54 |
| 9 × 7 | 63 |
| 9 × 8 | 72 |
| 9 × 9 | 81 |
| 9 × 10 | 90 |
| 9 × 11 | 99 |
| 9 × 12 | 108 |
Check your reasoning
Subtract the other factor, not always nine. For 9 × 7 you subtract seven from seventy; for 9 × 8 you subtract eight from eighty.
Neighbouring facts differ by 9. If you know 9 × 6 = 54, add 9 to find 9 × 7: 54 + 9 = 63.
Try it yourself
Say or write an answer before opening each question. If you get stuck, use the method above, then try that fact again later without looking.
9 × 3 = ?
9 × 3 = 27. Reversing the factors gives 3 × 9 = 27 too.
9 × 7 = ?
9 × 7 = 63. Reversing the factors gives 7 × 9 = 63 too.
9 × 8 = ?
9 × 8 = 72. Reversing the factors gives 8 × 9 = 72 too.
9 × 11 = ?
9 × 11 = 99. Reversing the factors gives 11 × 9 = 99 too.
9 × 12 = ?
9 × 12 = 108. Reversing the factors gives 12 × 9 = 108 too.
Connect the tables
Compare the 10 times table and look for doubles or groups you can add. In the multiplication chart, follow the whole row and its matching column.