Topics: Starter | Arithmetic | Calculator | Mental Methods | Problem Solving

• Transum,
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• The calculator above is interactive and the calculations on the right of the calculator will change colour when the answer appears on the calculator screen. There are of course an infinite number of possible solutions and you as teacher will have the final say on how legitimate, efficient or creative suggested solutions are.
• Transum,
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• This page is designed for whole class as a projected lesson starter. If you would like your students to work on this activity on their own iPads, laptops or tablets then the link at the bottom of this page will take you to the pupil version. This version has been updated so that the calculations are different every time the page is loaded and a Transum Trophy is available for completing it. Suggested solutions are available for Transum subscribers.

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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