Sumwise

1803 Times (1803×) Multiplication Table

1803 times table, 1 to 20

1803 × 11,803
1803 × 23,606
1803 × 35,409
1803 × 47,212
1803 × 59,015
1803 × 610,818
1803 × 712,621
1803 × 814,424
1803 × 916,227
1803 × 1018,030
1803 × 1119,833
1803 × 1221,636
1803 × 1323,439
1803 × 1425,242
1803 × 1527,045
1803 × 1628,848
1803 × 1730,651
1803 × 1832,454
1803 × 1934,257
1803 × 2036,060

Patterns that help you remember it

  • The last digits repeat in a cycle of 10: 3, 6, 9, 2, 5, 8, 1, 4, 7, 0.
  • Split it into tens and ones: 1803 × k = 1800 × k + 3 × k.
  • Each answer is 1803 more than the one before, so you can count on in steps of 1803.

Building it from tables you already know

To multiply 1803 by 9, multiply by 10 and take one 1803 away: 18,030 − 1803 = 16,227. To multiply by 11, multiply by 10 and add one more 1803: 18,030 + 1803 = 19,833. Multiplying by 4 is doubling twice: 1803 → 3,606 → 7,212.

Every multiple of 1803 is at least 1803, so there are none below 100 and 0 below 1,000. A number is in the 1803 times table exactly when it divides by 1803 with no remainder.

Odd, even and the last digit

Because 1803 is odd, the answers alternate between odd and even: 1803 × 1 = 1803 is odd, 1803 × 2 = 3,606 is even, and so on. Multiplying by 10 always puts a zero on the end: 1803 × 10 = 18,030, and 1803 × 100 = 180,300. Multiplying by 5 is half of multiplying by 10: half of 18,030 is 9,015.

Using the 1803 times table to divide

Every fact also works backwards: because 1803 × 7 = 12,621, you know 12,621 ÷ 1803 = 7 and 12,621 ÷ 7 = 1803. Practising the table and its division facts together halves the work.

1803 times table practice worksheet

  1. 1803 × 12 = ______
  2. 1803 × 5 = ______
  3. 1803 × 1 = ______
  4. 1803 × 9 = ______
  5. 1803 × 1 = ______
  6. 1803 × 3 = ______
  7. 1803 × 7 = ______
  8. 1803 × 10 = ______
  9. 1803 × 10 = ______
  10. 1803 × 9 = ______
  11. 1803 × 5 = ______
  12. 1803 × 2 = ______
Answer key
  1. 21,636
  2. 9,015
  3. 1,803
  4. 16,227
  5. 1,803
  6. 5,409
  7. 12,621
  8. 18,030
  9. 18,030
  10. 16,227
  11. 9,015
  12. 3,606

Word problems

Times tables are most useful when you can spot them in a question. Try these, then open each one to check:

  1. A box holds 1803 pencils. How many pencils are in 3 boxes?
    Answer3 × 1803 = 5,409 pencils.
  2. Tickets cost $1803 each. How much do 7 tickets cost?
    Answer7 × $1803 = $12,621.
  3. 14,424 chairs are set out in rows of 1803. How many rows are there?
    Answer14,424 ÷ 1803 = 8 rows.
  4. A plant grows 1803 millimetres a week. How much does it grow in 11 weeks?
    Answer11 × 1803 = 19,833 millimetres.

About this page

The table, the patterns and the practice questions are all calculated for 1803 when the page is opened, so every fact on it is exact. Use the options above the worksheet to change the number of questions or the largest multiplier.

Questions

What is 1803 × 12?

21,636.

What is half of 1803 × 8?

1803 × 8 = 14,424, and half of that is 7,212, which is 1803 × 4. Halving one factor halves the answer.

What is 1803 times 0?

0. Any number multiplied by zero is zero, because zero groups of 1803 contain nothing.

What is 1803 × 7 and 1803 × 8?

1803 × 7 = 12,621 and 1803 × 8 = 14,424. These two are the facts most people find hardest, so they are worth practising on their own.

Is 27,045 in the 1803 times table?

Yes: 27,045 ÷ 1803 = 15 with no remainder. 27,046 is not, because dividing it by 1803 leaves a remainder of 1.

How do I learn the 1803 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.