Double these numbers and write down the answers in the back of your book:

 4 5 9 14 19 24 31 49 67 80 87 105 326 470 1117 1628 1749 1781 7.1 0.95 0.007 0.0012 0.00093 -53.41

## A Mathematics Lesson Starter Of The Day

Topics: Starter | Arithmetic

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• I like this and so did my pupils, extremely good idea.
• The Best Maths Class Ever 7cd/M2, King Alfred's College, Oxfordshire
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• Too simple. Just 24 multiplication questions that everyone could do upsidedown... No offence intended cos we love your website really.
• Murran, Oxfordshire
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• Not the best starter ever!
Too simple!
• Y6, Tickhill St. Mary's
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• We liked this: it wasn't too hard.
• Beth, NB
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• Excellent warm-up when you don't allow paper. How far can they go mentally...that's how I used it.
• Cameron, Y6 Charnwood Primary, Lichfield
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• It was a good warm up to get the class ready for harder times tables.
• Transum,
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• Undoubtedly this starter will be tackled by different classes in different ways depending on their abilities. For some it will be quite a challenge but more able pupils could treat it as a gentle warm up before the main part of the lesson begins. There is nothing wrong with a gentle warm up, athletes do it often. It does not create stress but allows the individual to enter the right frame of mind for the delights of the lesson to come. Donâ€™t forget to refresh the page to see a new of numbers generated randomly allowing this starter to be used with the same group on more than one occasion.
• Sue, Sydney
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• Good, simple starter.Can we have a more positive dog pic next time?

How did you use this starter? Can you suggest how teachers could present or develop this resource? Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for Maths teachers anywhere in the world.

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Note to teacher: Doing this activity once with a class helps students develop strategies. It is only when they do this activity a second time that they will have the opportunity to practise those strategies. That is when the learning is consolidated. Click the button above to regenerate another version of this starter from random numbers.

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Here is the URL which will take them to a related student activity.

Transum.org/go/?to=doubling

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