Sumwise

51 Times (51×) Multiplication Table

51 times table, 1 to 20

51 × 151
51 × 2102
51 × 3153
51 × 4204
51 × 5255
51 × 6306
51 × 7357
51 × 8408
51 × 9459
51 × 10510
51 × 11561
51 × 12612
51 × 13663
51 × 14714
51 × 15765
51 × 16816
51 × 17867
51 × 18918
51 × 19969
51 × 201,020

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: 51 × k = 50 × k + 1 × k.
  • Each answer is 51 more than the one before, so you can count on in steps of 51.

Building it from tables you already know

To multiply 51 by 9, multiply by 10 and take one 51 away: 510 − 51 = 459. To multiply by 11, multiply by 10 and add one more 51: 510 + 51 = 561. Multiplying by 4 is doubling twice: 51 → 102 → 204.

There are 1 multiples of 51 below 100, and 19 below 1,000. A number is in the 51 times table exactly when it divides by 51 with no remainder.

Odd, even and the last digit

Because 51 is odd, the answers alternate between odd and even: 51 × 1 = 51 is odd, 51 × 2 = 102 is even, and so on. Multiplying by 10 always puts a zero on the end: 51 × 10 = 510, and 51 × 100 = 5,100. Multiplying by 5 is half of multiplying by 10: half of 510 is 255.

Using the 51 times table to divide

Every fact also works backwards: because 51 × 7 = 357, you know 357 ÷ 51 = 7 and 357 ÷ 7 = 51. Practising the table and its division facts together halves the work.

51 times table practice worksheet

  1. 51 × 4 = ______
  2. 51 × 3 = ______
  3. 51 × 7 = ______
  4. 51 × 3 = ______
  5. 51 × 6 = ______
  6. 51 × 4 = ______
  7. 51 × 11 = ______
  8. 51 × 9 = ______
  9. 51 × 9 = ______
  10. 51 × 7 = ______
  11. 51 × 10 = ______
  12. 51 × 11 = ______
Answer key
  1. 204
  2. 153
  3. 357
  4. 153
  5. 306
  6. 204
  7. 561
  8. 459
  9. 459
  10. 357
  11. 510
  12. 561

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 51 pencils. How many pencils are in 5 boxes?
    Answer5 × 51 = 255 pencils.
  2. Tickets cost $51 each. How much do 10 tickets cost?
    Answer10 × $51 = $510.
  3. 357 chairs are set out in rows of 51. How many rows are there?
    Answer357 ÷ 51 = 7 rows.
  4. A plant grows 51 millimetres a week. How much does it grow in 12 weeks?
    Answer12 × 51 = 612 millimetres.

About this page

The table, the patterns and the practice questions are all calculated for 51 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 51 × 12?

612.

What is half of 51 × 8?

51 × 8 = 408, and half of that is 204, which is 51 × 4. Halving one factor halves the answer.

What is 51 times 0?

0. Any number multiplied by zero is zero, because zero groups of 51 contain nothing.

What is 51 × 7 and 51 × 8?

51 × 7 = 357 and 51 × 8 = 408. These two are the facts most people find hardest, so they are worth practising on their own.

Is 765 in the 51 times table?

Yes: 765 ÷ 51 = 15 with no remainder. 766 is not, because dividing it by 51 leaves a remainder of 1.

How do I learn the 51 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.