1780 Times (1780×) Multiplication Table
1780 times table, 1 to 20
| 1780 × 1 | 1,780 |
| 1780 × 2 | 3,560 |
| 1780 × 3 | 5,340 |
| 1780 × 4 | 7,120 |
| 1780 × 5 | 8,900 |
| 1780 × 6 | 10,680 |
| 1780 × 7 | 12,460 |
| 1780 × 8 | 14,240 |
| 1780 × 9 | 16,020 |
| 1780 × 10 | 17,800 |
| 1780 × 11 | 19,580 |
| 1780 × 12 | 21,360 |
| 1780 × 13 | 23,140 |
| 1780 × 14 | 24,920 |
| 1780 × 15 | 26,700 |
| 1780 × 16 | 28,480 |
| 1780 × 17 | 30,260 |
| 1780 × 18 | 32,040 |
| 1780 × 19 | 33,820 |
| 1780 × 20 | 35,600 |
Patterns that help you remember it
- The last digits repeat in a cycle of 1: 0.
- Every answer is even, because 1780 is even.
- Every answer ends in 0 or 5.
- Split it into tens and ones: 1780 × k = 1780 × k + 0 × k.
- Each answer is 1780 more than the one before, so you can count on in steps of 1780.
Building it from tables you already know
Every answer in the 1780 times table is double the answer in the 890 times table: 890 × 6 = 5,340, so 1780 × 6 = 10,680. To multiply 1780 by 9, multiply by 10 and take one 1780 away: 17,800 − 1780 = 16,020. To multiply by 11, multiply by 10 and add one more 1780: 17,800 + 1780 = 19,580. Multiplying by 4 is doubling twice: 1780 → 3,560 → 7,120.
Every multiple of 1780 is at least 1780, so there are none below 100 and 0 below 1,000. A number is in the 1780 times table exactly when it divides by 1780 with no remainder.
Odd, even and the last digit
Because 1780 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: 1780 × 10 = 17,800, and 1780 × 100 = 178,000. Multiplying by 5 is half of multiplying by 10: half of 17,800 is 8,900.
Using the 1780 times table to divide
Every fact also works backwards: because 1780 × 7 = 12,460, you know 12,460 ÷ 1780 = 7 and 12,460 ÷ 7 = 1780. Practising the table and its division facts together halves the work.
1780 times table practice worksheet
- 1780 × 11 = ______
- 1780 × 3 = ______
- 1780 × 5 = ______
- 1780 × 4 = ______
- 1780 × 9 = ______
- 1780 × 12 = ______
- 1780 × 8 = ______
- 1780 × 2 = ______
- 1780 × 8 = ______
- 1780 × 12 = ______
- 1780 × 3 = ______
- 1780 × 7 = ______
Answer key
- 19,580
- 5,340
- 8,900
- 7,120
- 16,020
- 21,360
- 14,240
- 3,560
- 14,240
- 21,360
- 5,340
- 12,460
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 1780 pencils. How many pencils are in 5 boxes?
Answer
5 × 1780 = 8,900 pencils. - Tickets cost $1780 each. How much do 4 tickets cost?
Answer
4 × $1780 = $7,120. - 14,240 chairs are set out in rows of 1780. How many rows are there?
Answer
14,240 ÷ 1780 = 8 rows. - A plant grows 1780 millimetres a week. How much does it grow in 7 weeks?
Answer
7 × 1780 = 12,460 millimetres.
Questions
What is 1780 × 12?
21,360.
What is half of 1780 × 8?
1780 × 8 = 14,240, and half of that is 7,120, which is 1780 × 4. Halving one factor halves the answer.
What is 1780 times 0?
0. Any number multiplied by zero is zero, because zero groups of 1780 contain nothing.
What is 1780 × 7 and 1780 × 8?
1780 × 7 = 12,460 and 1780 × 8 = 14,240. These two are the facts most people find hardest, so they are worth practising on their own.
Is 26,700 in the 1780 times table?
Yes: 26,700 ÷ 1780 = 15 with no remainder. 26,701 is not, because dividing it by 1780 leaves a remainder of 1.
How do I learn the 1780 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.