Sumwise

90 Times (90×) Multiplication Table

90 times table, 1 to 20

90 × 190
90 × 2180
90 × 3270
90 × 4360
90 × 5450
90 × 6540
90 × 7630
90 × 8720
90 × 9810
90 × 10900
90 × 11990
90 × 121,080
90 × 131,170
90 × 141,260
90 × 151,350
90 × 161,440
90 × 171,530
90 × 181,620
90 × 191,710
90 × 201,800

Patterns that help you remember it

  • The last digits repeat in a cycle of 1: 0.
  • Every answer is even, because 90 is even.
  • The digits of every answer add up to a multiple of 9.
  • Every answer ends in 0 or 5.
  • Split it into tens and ones: 90 × k = 90 × k + 0 × k.
  • Each answer is 90 more than the one before, so you can count on in steps of 90.

Building it from tables you already know

Every answer in the 90 times table is double the answer in the 45 times table: 45 × 6 = 270, so 90 × 6 = 540. To multiply 90 by 9, multiply by 10 and take one 90 away: 900 − 90 = 810. To multiply by 11, multiply by 10 and add one more 90: 900 + 90 = 990. Multiplying by 4 is doubling twice: 90 → 180 → 360.

There are 1 multiples of 90 below 100, and 11 below 1,000. A number is in the 90 times table exactly when it divides by 90 with no remainder.

Odd, even and the last digit

Because 90 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: 90 × 10 = 900, and 90 × 100 = 9,000. Multiplying by 5 is half of multiplying by 10: half of 900 is 450.

Using the 90 times table to divide

Every fact also works backwards: because 90 × 7 = 630, you know 630 ÷ 90 = 7 and 630 ÷ 7 = 90. Practising the table and its division facts together halves the work.

90 times table practice worksheet

  1. 90 × 7 = ______
  2. 90 × 11 = ______
  3. 90 × 5 = ______
  4. 90 × 3 = ______
  5. 90 × 5 = ______
  6. 90 × 2 = ______
  7. 90 × 3 = ______
  8. 90 × 10 = ______
  9. 90 × 8 = ______
  10. 90 × 8 = ______
  11. 90 × 10 = ______
  12. 90 × 9 = ______
Answer key
  1. 630
  2. 990
  3. 450
  4. 270
  5. 450
  6. 180
  7. 270
  8. 900
  9. 720
  10. 720
  11. 900
  12. 810

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 90 pencils. How many pencils are in 8 boxes?
    Answer8 × 90 = 720 pencils.
  2. Tickets cost $90 each. How much do 6 tickets cost?
    Answer6 × $90 = $540.
  3. 180 chairs are set out in rows of 90. How many rows are there?
    Answer180 ÷ 90 = 2 rows.
  4. A plant grows 90 millimetres a week. How much does it grow in 7 weeks?
    Answer7 × 90 = 630 millimetres.

About this page

The table, the patterns and the practice questions are all calculated for 90 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 90 × 12?

1,080.

What is half of 90 × 8?

90 × 8 = 720, and half of that is 360, which is 90 × 4. Halving one factor halves the answer.

What is 90 times 0?

0. Any number multiplied by zero is zero, because zero groups of 90 contain nothing.

What is 90 × 7 and 90 × 8?

90 × 7 = 630 and 90 × 8 = 720. These two are the facts most people find hardest, so they are worth practising on their own.

Is 1,350 in the 90 times table?

Yes: 1,350 ÷ 90 = 15 with no remainder. 1,351 is not, because dividing it by 90 leaves a remainder of 1.

How do I learn the 90 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.