Sumwise

1801 Times (1801×) Multiplication Table

1801 times table, 1 to 20

1801 × 11,801
1801 × 23,602
1801 × 35,403
1801 × 47,204
1801 × 59,005
1801 × 610,806
1801 × 712,607
1801 × 814,408
1801 × 916,209
1801 × 1018,010
1801 × 1119,811
1801 × 1221,612
1801 × 1323,413
1801 × 1425,214
1801 × 1527,015
1801 × 1628,816
1801 × 1730,617
1801 × 1832,418
1801 × 1934,219
1801 × 2036,020

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: 1801 × k = 1800 × k + 1 × k.
  • Each answer is 1801 more than the one before, so you can count on in steps of 1801.

Building it from tables you already know

To multiply 1801 by 9, multiply by 10 and take one 1801 away: 18,010 − 1801 = 16,209. To multiply by 11, multiply by 10 and add one more 1801: 18,010 + 1801 = 19,811. Multiplying by 4 is doubling twice: 1801 → 3,602 → 7,204.

Every multiple of 1801 is at least 1801, so there are none below 100 and 0 below 1,000. A number is in the 1801 times table exactly when it divides by 1801 with no remainder.

Odd, even and the last digit

Because 1801 is odd, the answers alternate between odd and even: 1801 × 1 = 1801 is odd, 1801 × 2 = 3,602 is even, and so on. Multiplying by 10 always puts a zero on the end: 1801 × 10 = 18,010, and 1801 × 100 = 180,100. Multiplying by 5 is half of multiplying by 10: half of 18,010 is 9,005.

Using the 1801 times table to divide

Every fact also works backwards: because 1801 × 7 = 12,607, you know 12,607 ÷ 1801 = 7 and 12,607 ÷ 7 = 1801. Practising the table and its division facts together halves the work.

1801 times table practice worksheet

  1. 1801 × 12 = ______
  2. 1801 × 5 = ______
  3. 1801 × 9 = ______
  4. 1801 × 11 = ______
  5. 1801 × 9 = ______
  6. 1801 × 6 = ______
  7. 1801 × 12 = ______
  8. 1801 × 12 = ______
  9. 1801 × 1 = ______
  10. 1801 × 10 = ______
  11. 1801 × 9 = ______
  12. 1801 × 10 = ______
Answer key
  1. 21,612
  2. 9,005
  3. 16,209
  4. 19,811
  5. 16,209
  6. 10,806
  7. 21,612
  8. 21,612
  9. 1,801
  10. 18,010
  11. 16,209
  12. 18,010

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 1801 pencils. How many pencils are in 3 boxes?
    Answer3 × 1801 = 5,403 pencils.
  2. Tickets cost $1801 each. How much do 9 tickets cost?
    Answer9 × $1801 = $16,209.
  3. 9,005 chairs are set out in rows of 1801. How many rows are there?
    Answer9,005 ÷ 1801 = 5 rows.
  4. A plant grows 1801 millimetres a week. How much does it grow in 9 weeks?
    Answer9 × 1801 = 16,209 millimetres.

About this page

The table, the patterns and the practice questions are all calculated for 1801 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 1801 × 12?

21,612.

What is half of 1801 × 8?

1801 × 8 = 14,408, and half of that is 7,204, which is 1801 × 4. Halving one factor halves the answer.

What is 1801 times 0?

0. Any number multiplied by zero is zero, because zero groups of 1801 contain nothing.

What is 1801 × 7 and 1801 × 8?

1801 × 7 = 12,607 and 1801 × 8 = 14,408. These two are the facts most people find hardest, so they are worth practising on their own.

Is 27,015 in the 1801 times table?

Yes: 27,015 ÷ 1801 = 15 with no remainder. 27,016 is not, because dividing it by 1801 leaves a remainder of 1.

How do I learn the 1801 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.