Learn the tables

Many times-table facts repeat. Learn the patterns, then practice six useful facts.

Fewer facts than it looks

7 × 8 = 568 × 7 = 56
One fact, two ways round.
6 → 1212 → 2424 → 48
Three doubles give 8 × 6.

The tables from 2 to 12, each multiplied by 1 to 12, contain 132 questions. Many come in reversed pairs. 7 × 8 and 8 × 7 have the same answer, so learning one gives you the other and saves work.

More

Some tables have a pattern you can lean on. In the 9s, for multipliers from 1 to 10, the tens digit is one less than the multiplier, and the tens and units digits add up to 9. The 5s end in 5 or 0 and are half of the 10s. The 4s are double the 2s.

Doubling covers more than you expect. The 2s are one double, the 4s are two doubles and the 8s are three. So 8 × 6 is 6 doubled to 12, doubled to 24, doubled to 48.

Lesson help

Many facts repeat when you swap the factors. The 9s, the 5s and the doubling tables have patterns. Practice recalling the six example facts without working them out each time.

About this lesson

Try the method in a practice when you are ready.

Report

Fewer facts than it looks

The tables from 2 to 12, each multiplied by 1 to 12, contain 132 questions. Many come in reversed pairs. 7 × 8 and 8 × 7 have the same answer, so learning one gives you the other and saves work.

Some tables have a pattern you can lean on. In the 9s, for multipliers from 1 to 10, the tens digit is one less than the multiplier, and the tens and units digits add up to 9. The 5s end in 5 or 0 and are half of the 10s. The 4s are double the 2s.

Doubling covers more than you expect. The 2s are one double, the 4s are two doubles and the 8s are three. So 8 × 6 is 6 doubled to 12, doubled to 24, doubled to 48.

7 × 8 = 568 × 7 = 56
One fact, two ways round.
6 → 1212 → 2424 → 48
Three doubles give 8 × 6.

The 9s, worked

Take 9 × 4. The tens digit is one less than 4, which is 3. The two digits of the answer add up to 9, so the units digit is 9 − 3, which is 6. The answer is 36.

Try it on 9 × 8. The tens digit is 7. The units digit is 9 − 7, which is 2. The answer is 72.

The pattern holds for every multiplier from 1 to 10. At 9 × 11 and 9 × 12 it stops, so learn those two as they are: 99 and 108.

9 × 4tens: 4 − 1 = 33 + 6 = 9, so 36
One less, then make nine.
9 × 8tens: 8 − 1 = 77 + 2 = 9, so 72
The same two steps again.

Six facts to practice

The patterns help with many of the tables. Here are six facts to practice recalling: 6 × 7 = 42, 6 × 8 = 48, 7 × 8 = 56, 7 × 9 = 63, 8 × 9 = 72 and 9 × 6 = 54.

Five of them do have a rule. The 9s rule gives 7 × 9, 8 × 9 and 9 × 6. Three doubles give 6 × 8 and 7 × 8. Only 6 × 7 has neither.

Working a rule still takes a moment. Drill these six until they come back without one, in the order above.

Now use the 9s pattern on a fact this page has not worked.

6 × 7 = 426 × 8 = 487 × 8 = 56
The first three.
7 × 9 = 638 × 9 = 729 × 6 = 54
The last three.

Try it

Use the 9s pattern. What is 9 × 3?

  1. 27
  2. 36
Show the answer

27

Correct. The tens digit is 3 − 1, which is 2, and 2 + 7 = 9, so the answer is 27.

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