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Product of one of 2, 3, 5, 9, or 10 by a number up to 10. With hints to learn calculation rather than memorisation.

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Practice some multiplication.

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You can see the answers to each part when you click back through your parts in the navigation at the top.

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Work out \\(\\var{a}\\times \\var{b} = \\) [[0]]

You can work out \\(2\\times \\var{times2}\\) using addition: \\(2\\times \\var{times2}=\\var{times2}+\\var{times2}=\\)[[0]]

You can work out \\(3\\times \\var{times3}\\) in different ways. (Just fill in the one you want to do, don't worry about the missing marks. Then go back to the previous part and put your answer in there to get the marks counted.

If you know \\(2\\times \\var{times3}\\), then add another \\(\\var{times3}\\) to it. \\(2\\times \\var{times3}=\\) [[0]]. Then add \\(\\var{times3}\\) to the answer: [[1]]
Or just use addition: \\(3\\times \\var{times2}=\\var{times3}+\\var{times3}+\\var{times3}=\\) [[2]]

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To multiply by \\(10\\), you just need to put a zero at the end. \\(10\\times \\var{times10}=\\)[[0]].

Times \\(1\\) is always easy: it's just the number itself. So \\(\\var{a}\\times 1= \\)[[0]]

To multiply by \\(5\\), you can multiply by \\(10\\), which is quite easy, and then take half of the answer. It's good practice for doing halves as well!

\\(10\\times \\var{times5}= \\) [[0]], and half of that is [[1]].

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To multiply by \\(9\\), the easiest way is to multiply by \\(10\\) and then take the number away once.

\\(10\\times \\var{times9}= \\) [[0]]. Then take away \\(\\var{times9}\\) gives [[1]].

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