1689 Times (1689×) Multiplication Table
1689 times table, 1 to 20
| 1689 × 1 | 1,689 |
| 1689 × 2 | 3,378 |
| 1689 × 3 | 5,067 |
| 1689 × 4 | 6,756 |
| 1689 × 5 | 8,445 |
| 1689 × 6 | 10,134 |
| 1689 × 7 | 11,823 |
| 1689 × 8 | 13,512 |
| 1689 × 9 | 15,201 |
| 1689 × 10 | 16,890 |
| 1689 × 11 | 18,579 |
| 1689 × 12 | 20,268 |
| 1689 × 13 | 21,957 |
| 1689 × 14 | 23,646 |
| 1689 × 15 | 25,335 |
| 1689 × 16 | 27,024 |
| 1689 × 17 | 28,713 |
| 1689 × 18 | 30,402 |
| 1689 × 19 | 32,091 |
| 1689 × 20 | 33,780 |
Patterns that help you remember it
- The last digits repeat in a cycle of 10: 9, 8, 7, 6, 5, 4, 3, 2, 1, 0.
- Split it into tens and ones: 1689 × k = 1680 × k + 9 × k.
- Each answer is 1689 more than the one before, so you can count on in steps of 1689.
Building it from tables you already know
To multiply 1689 by 9, multiply by 10 and take one 1689 away: 16,890 − 1689 = 15,201. To multiply by 11, multiply by 10 and add one more 1689: 16,890 + 1689 = 18,579. Multiplying by 4 is doubling twice: 1689 → 3,378 → 6,756.
Every multiple of 1689 is at least 1689, so there are none below 100 and 0 below 1,000. A number is in the 1689 times table exactly when it divides by 1689 with no remainder.
Odd, even and the last digit
Because 1689 is odd, the answers alternate between odd and even: 1689 × 1 = 1689 is odd, 1689 × 2 = 3,378 is even, and so on. Multiplying by 10 always puts a zero on the end: 1689 × 10 = 16,890, and 1689 × 100 = 168,900. Multiplying by 5 is half of multiplying by 10: half of 16,890 is 8,445.
Using the 1689 times table to divide
Every fact also works backwards: because 1689 × 7 = 11,823, you know 11,823 ÷ 1689 = 7 and 11,823 ÷ 7 = 1689. Practising the table and its division facts together halves the work.
1689 times table practice worksheet
- 1689 × 4 = ______
- 1689 × 4 = ______
- 1689 × 7 = ______
- 1689 × 2 = ______
- 1689 × 2 = ______
- 1689 × 3 = ______
- 1689 × 10 = ______
- 1689 × 11 = ______
- 1689 × 8 = ______
- 1689 × 9 = ______
- 1689 × 8 = ______
- 1689 × 6 = ______
Answer key
- 6,756
- 6,756
- 11,823
- 3,378
- 3,378
- 5,067
- 16,890
- 18,579
- 13,512
- 15,201
- 13,512
- 10,134
Word problems
Times tables are most useful when you can spot them in a question. Try these, then open each one to check:
- A box holds 1689 pencils. How many pencils are in 9 boxes?
Answer
9 × 1689 = 15,201 pencils. - Tickets cost $1689 each. How much do 5 tickets cost?
Answer
5 × $1689 = $8,445. - 6,756 chairs are set out in rows of 1689. How many rows are there?
Answer
6,756 ÷ 1689 = 4 rows. - A plant grows 1689 millimetres a week. How much does it grow in 11 weeks?
Answer
11 × 1689 = 18,579 millimetres.
Questions
What is 1689 × 12?
20,268.
What is half of 1689 × 8?
1689 × 8 = 13,512, and half of that is 6,756, which is 1689 × 4. Halving one factor halves the answer.
What is 1689 times 0?
0. Any number multiplied by zero is zero, because zero groups of 1689 contain nothing.
What is 1689 × 7 and 1689 × 8?
1689 × 7 = 11,823 and 1689 × 8 = 13,512. These two are the facts most people find hardest, so they are worth practising on their own.
Is 25,335 in the 1689 times table?
Yes: 25,335 ÷ 1689 = 15 with no remainder. 25,336 is not, because dividing it by 1689 leaves a remainder of 1.
How do I learn the 1689 times table quickly?
Learn it in order first, then use the patterns above and practise mixed questions; a few minutes a day works better than one long session.