On The Double

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


A Mathematics Lesson Starter Of The Day


Topics: Starter | Arithmetic

  • Bernadette Summers,
  • I like this and so did my pupils, extremely good idea.
  • The Best Maths Class Ever 7cd/M2, King Alfred's College, Oxfordshire
  • Too simple. Just 24 multiplication questions that everyone could do upsidedown... No offence intended cos we love your website really.
  • Murran, Oxfordshire
  • Not the best starter ever!
    Too simple!
  • Y6, Tickhill St. Mary's
  • We liked this: it wasn't too hard.
  • Beth, NB
  • 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
  • It was a good warm up to get the class ready for harder times tables.
  • Transum,
  • 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. Don’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.

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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If you don't have the time to provide feedback we'd really appreciate it if you could give this page a score! We are constantly improving and adding to these starters so it would be really helpful to know which ones are most useful. Simply click on a button below:

Excellent, I would like to see more like this
Good, achieved the results I required
Didn't really capture the interest of the students
Not for me! I wouldn't use this type of activity.

This starter has scored a mean of 3.3 out of 5 based on 76 votes.

Previous Day | This starter is for 7 September | Next Day



5 x 2 =
9 x 2 =
14 x 2 =
17 x 2 =
22 x 2 =
26 x 2 =
35 x 2 =
47 x 2 =
61 x 2 =
76 x 2 =
92 x 2 =
99 x 2 =
587 x 2 =
983 x 2 =
1310 x 2 =
1474 x 2 =
2061 x 2 =
2425 x 2 =
8.4 x 2 =
0.86 x 2 =
0.045 x 2 =
0.0067 x 2 =
0.00027 x 2 =
-34.04 x 2 =

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.

Casio Classwiz Calculator

There is currently a lot of talk about this new calculator being the best in its price range for use in the Maths classroom. The new ClassWiz features a high-resolution display making it easier to view numerical formulas and symbols but it isn't a graphical calculator as such (it has the capacity to draw graphs on your smart phone or tablet, via a scannable QR code and an app).

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Laptops In Lessons

Teacher, do your students have access to computers?
Do they have iPads or Laptops in Lessons?

Whether your students each have a TabletPC, a Surface or a Mac, this activity lends itself to eLearning (Engaged Learning).

Laptops In Lessons

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Student Activity



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