Table of 24

How to say the table of 24

24 one is 24, 24 twos are 48, 24 threes are 72, 24 fours are 96, 24 fives are 120, 24 sixes are 144, 24 sevens are 168, 24 eights are 192, 24 nines are 216, 24 tens are 240.

A quick way to work it out

Double the table of 12, or take twenty-five times and remove one lot. For 24 × 6: 12 × 6 = 72, doubled is 144. For 24 × 8: 200 − 8 = 192.

Patterns in the table of 24

• Last digit. The last digits run 4, 8, 2, 6 and 0 and then start again, a cycle of five. All of them are even, so no answer in the table of 24 can be odd.
• Odd and even. 24 is even, so every answer is even, whatever you multiply by.
• Digit totals. Add the digits of each answer until one digit is left, and you get 6, 3 and 9, repeating. Only 3, 6 and 9 appear, because 24 is a multiple of 3.
• Steps of 24. Each answer is 24 more than the one above it. So if 24 × 7 slips your mind, take 24 × 6 = 144 and add 24 to get 168.
• Total of the first ten. Add the first ten answers and you get 1320. That is 55 × 24, because 1 + 2 + 3 and so on up to 10 is 55.

How the table of 24 is built

24 is not prime: it can be written as 2 × 12 or 3 × 8 or 4 × 6. So its table can be built from a smaller one. For example 24 × 6 is 4 × 36, and 6 × 6 = 36, so the answer is 4 × 36 = 144. The square of 24 is 24 × 24 = 576. On a multiplication chart the squares lie on the diagonal line from top left to bottom right.

Split it. Above 10, the sure method is to split the number into tens and units. 24 × 8 is 20 × 8 plus 4 × 8, which is 160 + 32 = 192.

Where you meet 24

A day has 24 hours, so a week has 24 × 7 = 168 hours. Two dozen is 24.

Division facts from this table

Every line gives a division fact for free. From 24 × 7 = 168 you know that 168 ÷ 24 = 7 and 168 ÷ 7 = 24. To divide a number by 24, look for it in the answers above: 216 is on line 9, so 216 ÷ 24 = 9. More on this in division from tables.

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All tables: 1 to 10, 11 to 20, 21 to 30. Methods: table tricks.