1840 Times (1840×) Multiplication Table
1840 times table, 1 to 20
| 1840 × 1 | 1,840 |
| 1840 × 2 | 3,680 |
| 1840 × 3 | 5,520 |
| 1840 × 4 | 7,360 |
| 1840 × 5 | 9,200 |
| 1840 × 6 | 11,040 |
| 1840 × 7 | 12,880 |
| 1840 × 8 | 14,720 |
| 1840 × 9 | 16,560 |
| 1840 × 10 | 18,400 |
| 1840 × 11 | 20,240 |
| 1840 × 12 | 22,080 |
| 1840 × 13 | 23,920 |
| 1840 × 14 | 25,760 |
| 1840 × 15 | 27,600 |
| 1840 × 16 | 29,440 |
| 1840 × 17 | 31,280 |
| 1840 × 18 | 33,120 |
| 1840 × 19 | 34,960 |
| 1840 × 20 | 36,800 |
Patterns that help you remember it
- The last digits repeat in a cycle of 1: 0.
- Every answer is even, because 1840 is even.
- Every answer ends in 0 or 5.
- Split it into tens and ones: 1840 × k = 1840 × k + 0 × k.
- Each answer is 1840 more than the one before, so you can count on in steps of 1840.
Building it from tables you already know
Every answer in the 1840 times table is double the answer in the 920 times table: 920 × 6 = 5,520, so 1840 × 6 = 11,040. To multiply 1840 by 9, multiply by 10 and take one 1840 away: 18,400 − 1840 = 16,560. To multiply by 11, multiply by 10 and add one more 1840: 18,400 + 1840 = 20,240. Multiplying by 4 is doubling twice: 1840 → 3,680 → 7,360.
Every multiple of 1840 is at least 1840, so there are none below 100 and 0 below 1,000. A number is in the 1840 times table exactly when it divides by 1840 with no remainder.
Odd, even and the last digit
Because 1840 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: 1840 × 10 = 18,400, and 1840 × 100 = 184,000. Multiplying by 5 is half of multiplying by 10: half of 18,400 is 9,200.
Using the 1840 times table to divide
Every fact also works backwards: because 1840 × 7 = 12,880, you know 12,880 ÷ 1840 = 7 and 12,880 ÷ 7 = 1840. Practising the table and its division facts together halves the work.
1840 times table practice worksheet
- 1840 × 9 = ______
- 1840 × 11 = ______
- 1840 × 12 = ______
- 1840 × 12 = ______
- 1840 × 6 = ______
- 1840 × 11 = ______
- 1840 × 5 = ______
- 1840 × 11 = ______
- 1840 × 10 = ______
- 1840 × 9 = ______
- 1840 × 7 = ______
- 1840 × 7 = ______
Answer key
- 16,560
- 20,240
- 22,080
- 22,080
- 11,040
- 20,240
- 9,200
- 20,240
- 18,400
- 16,560
- 12,880
- 12,880
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 1840 pencils. How many pencils are in 8 boxes?
Answer
8 × 1840 = 14,720 pencils. - Tickets cost $1840 each. How much do 5 tickets cost?
Answer
5 × $1840 = $9,200. - 16,560 chairs are set out in rows of 1840. How many rows are there?
Answer
16,560 ÷ 1840 = 9 rows. - A plant grows 1840 millimetres a week. How much does it grow in 8 weeks?
Answer
8 × 1840 = 14,720 millimetres.
Questions
What is 1840 × 12?
22,080.
What is half of 1840 × 8?
1840 × 8 = 14,720, and half of that is 7,360, which is 1840 × 4. Halving one factor halves the answer.
What is 1840 times 0?
0. Any number multiplied by zero is zero, because zero groups of 1840 contain nothing.
What is 1840 × 7 and 1840 × 8?
1840 × 7 = 12,880 and 1840 × 8 = 14,720. These two are the facts most people find hardest, so they are worth practising on their own.
Is 27,600 in the 1840 times table?
Yes: 27,600 ÷ 1840 = 15 with no remainder. 27,601 is not, because dividing it by 1840 leaves a remainder of 1.
How do I learn the 1840 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.