By Michael Hartley
Elsewhere on this site, I gave some general times tables tips. On this page, we'll have a closer look at the five times table. This table is generally easier to learn than some of the others, since the patterns are simpler and more obvious. It's probably best to help your child to notice the patterns himself or herself, rather than merely pointing them out.
The pattern in the ones digit is very easy to spot :
Likewise, the pattern in the tens digit is just as easy :
Five times an odd number ends with 5, and five times an even number ends with 0.
This is also the way to test if a number is divisible by five - if it ends with 0 or 5, its a multiple of five, otherwise it's not.
If your child is quick with multiplying or dividing by two, they can become equally quick with five.
- To multiply by five, you multiply by ten and divide by two. So 12345 times five is 123450 divided by two, which is 61725.
- To divide by five, you multiply by two and divide by ten. So 12345 divided by five is 24690 divided by ten, which is 2469.
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