1811 Times (1811×) Multiplication Table
1811 times table, 1 to 20
| 1811 × 1 | 1,811 |
| 1811 × 2 | 3,622 |
| 1811 × 3 | 5,433 |
| 1811 × 4 | 7,244 |
| 1811 × 5 | 9,055 |
| 1811 × 6 | 10,866 |
| 1811 × 7 | 12,677 |
| 1811 × 8 | 14,488 |
| 1811 × 9 | 16,299 |
| 1811 × 10 | 18,110 |
| 1811 × 11 | 19,921 |
| 1811 × 12 | 21,732 |
| 1811 × 13 | 23,543 |
| 1811 × 14 | 25,354 |
| 1811 × 15 | 27,165 |
| 1811 × 16 | 28,976 |
| 1811 × 17 | 30,787 |
| 1811 × 18 | 32,598 |
| 1811 × 19 | 34,409 |
| 1811 × 20 | 36,220 |
Patterns that help you remember it
- The last digits repeat in a cycle of 10: 1, 2, 3, 4, 5, 6, 7, 8, 9, 0.
- Split it into tens and ones: 1811 × k = 1810 × k + 1 × k.
- Each answer is 1811 more than the one before, so you can count on in steps of 1811.
Building it from tables you already know
To multiply 1811 by 9, multiply by 10 and take one 1811 away: 18,110 − 1811 = 16,299. To multiply by 11, multiply by 10 and add one more 1811: 18,110 + 1811 = 19,921. Multiplying by 4 is doubling twice: 1811 → 3,622 → 7,244.
Every multiple of 1811 is at least 1811, so there are none below 100 and 0 below 1,000. A number is in the 1811 times table exactly when it divides by 1811 with no remainder.
Odd, even and the last digit
Because 1811 is odd, the answers alternate between odd and even: 1811 × 1 = 1811 is odd, 1811 × 2 = 3,622 is even, and so on. Multiplying by 10 always puts a zero on the end: 1811 × 10 = 18,110, and 1811 × 100 = 181,100. Multiplying by 5 is half of multiplying by 10: half of 18,110 is 9,055.
Using the 1811 times table to divide
Every fact also works backwards: because 1811 × 7 = 12,677, you know 12,677 ÷ 1811 = 7 and 12,677 ÷ 7 = 1811. Practising the table and its division facts together halves the work.
1811 times table practice worksheet
- 1811 × 12 = ______
- 1811 × 4 = ______
- 1811 × 3 = ______
- 1811 × 9 = ______
- 1811 × 10 = ______
- 1811 × 10 = ______
- 1811 × 11 = ______
- 1811 × 4 = ______
- 1811 × 5 = ______
- 1811 × 12 = ______
- 1811 × 11 = ______
- 1811 × 7 = ______
Answer key
- 21,732
- 7,244
- 5,433
- 16,299
- 18,110
- 18,110
- 19,921
- 7,244
- 9,055
- 21,732
- 19,921
- 12,677
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 1811 pencils. How many pencils are in 3 boxes?
Answer
3 × 1811 = 5,433 pencils. - Tickets cost $1811 each. How much do 4 tickets cost?
Answer
4 × $1811 = $7,244. - 16,299 chairs are set out in rows of 1811. How many rows are there?
Answer
16,299 ÷ 1811 = 9 rows. - A plant grows 1811 millimetres a week. How much does it grow in 10 weeks?
Answer
10 × 1811 = 18,110 millimetres.
Questions
What is 1811 × 12?
21,732.
What is half of 1811 × 8?
1811 × 8 = 14,488, and half of that is 7,244, which is 1811 × 4. Halving one factor halves the answer.
What is 1811 times 0?
0. Any number multiplied by zero is zero, because zero groups of 1811 contain nothing.
What is 1811 × 7 and 1811 × 8?
1811 × 7 = 12,677 and 1811 × 8 = 14,488. These two are the facts most people find hardest, so they are worth practising on their own.
Is 27,165 in the 1811 times table?
Yes: 27,165 ÷ 1811 = 15 with no remainder. 27,166 is not, because dividing it by 1811 leaves a remainder of 1.
How do I learn the 1811 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.