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There are a variety of methods you can try. Choose what works best for you. Here are some examples.
Reverse the question
If someone asks you what 3 x 8 is and you're not sure of your 8 times table, turn it around into 8 x 3.
Use the facts you know well, like 10 times a number.
If you need to work out 12 x 4, start with 10 x 4 = 40 and add 2 more 4s to give 48.
Doubling
Doubling is a good trick. If you know that 4 x 4 = 16, then you can work out 8 x 4 by doubling 16, which gives 32.
Separate and add up
If you had to work out 25 x 5 you could use:
10 x 5 = 50 plus another 10 x 5 = 50.
Then 5 x 5 = 25.
Added together 50 + 50 + 25 = 125
Ask others what methods they use and give them a try.
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You can find Skillswise at http://www.bbc.co.uk/skillswise
This factsheet is BBC Copyright |