1820 Times (1820×) Multiplication Table
1820 times table, 1 to 20
| 1820 × 1 | 1,820 |
| 1820 × 2 | 3,640 |
| 1820 × 3 | 5,460 |
| 1820 × 4 | 7,280 |
| 1820 × 5 | 9,100 |
| 1820 × 6 | 10,920 |
| 1820 × 7 | 12,740 |
| 1820 × 8 | 14,560 |
| 1820 × 9 | 16,380 |
| 1820 × 10 | 18,200 |
| 1820 × 11 | 20,020 |
| 1820 × 12 | 21,840 |
| 1820 × 13 | 23,660 |
| 1820 × 14 | 25,480 |
| 1820 × 15 | 27,300 |
| 1820 × 16 | 29,120 |
| 1820 × 17 | 30,940 |
| 1820 × 18 | 32,760 |
| 1820 × 19 | 34,580 |
| 1820 × 20 | 36,400 |
Patterns that help you remember it
- The last digits repeat in a cycle of 1: 0.
- Every answer is even, because 1820 is even.
- Every answer ends in 0 or 5.
- Split it into tens and ones: 1820 × k = 1820 × k + 0 × k.
- Each answer is 1820 more than the one before, so you can count on in steps of 1820.
Building it from tables you already know
Every answer in the 1820 times table is double the answer in the 910 times table: 910 × 6 = 5,460, so 1820 × 6 = 10,920. To multiply 1820 by 9, multiply by 10 and take one 1820 away: 18,200 − 1820 = 16,380. To multiply by 11, multiply by 10 and add one more 1820: 18,200 + 1820 = 20,020. Multiplying by 4 is doubling twice: 1820 → 3,640 → 7,280.
Every multiple of 1820 is at least 1820, so there are none below 100 and 0 below 1,000. A number is in the 1820 times table exactly when it divides by 1820 with no remainder.
Odd, even and the last digit
Because 1820 is even, every answer in its table is even, which is a quick way to catch a wrong answer. Multiplying by 10 always puts a zero on the end: 1820 × 10 = 18,200, and 1820 × 100 = 182,000. Multiplying by 5 is half of multiplying by 10: half of 18,200 is 9,100.
Using the 1820 times table to divide
Every fact also works backwards: because 1820 × 7 = 12,740, you know 12,740 ÷ 1820 = 7 and 12,740 ÷ 7 = 1820. Practising the table and its division facts together halves the work.
1820 times table practice worksheet
- 1820 × 7 = ______
- 1820 × 4 = ______
- 1820 × 8 = ______
- 1820 × 3 = ______
- 1820 × 8 = ______
- 1820 × 9 = ______
- 1820 × 12 = ______
- 1820 × 11 = ______
- 1820 × 7 = ______
- 1820 × 3 = ______
- 1820 × 10 = ______
- 1820 × 5 = ______
Answer key
- 12,740
- 7,280
- 14,560
- 5,460
- 14,560
- 16,380
- 21,840
- 20,020
- 12,740
- 5,460
- 18,200
- 9,100
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 1820 pencils. How many pencils are in 9 boxes?
Answer
9 × 1820 = 16,380 pencils. - Tickets cost $1820 each. How much do 6 tickets cost?
Answer
6 × $1820 = $10,920. - 12,740 chairs are set out in rows of 1820. How many rows are there?
Answer
12,740 ÷ 1820 = 7 rows. - A plant grows 1820 millimetres a week. How much does it grow in 7 weeks?
Answer
7 × 1820 = 12,740 millimetres.
Questions
What is 1820 × 12?
21,840.
What is half of 1820 × 8?
1820 × 8 = 14,560, and half of that is 7,280, which is 1820 × 4. Halving one factor halves the answer.
What is 1820 times 0?
0. Any number multiplied by zero is zero, because zero groups of 1820 contain nothing.
What is 1820 × 7 and 1820 × 8?
1820 × 7 = 12,740 and 1820 × 8 = 14,560. These two are the facts most people find hardest, so they are worth practising on their own.
Is 27,300 in the 1820 times table?
Yes: 27,300 ÷ 1820 = 15 with no remainder. 27,301 is not, because dividing it by 1820 leaves a remainder of 1.
How do I learn the 1820 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.