Powers and Roots
Key Stage: 4 ★
In this version of countdown, you are restricted to taking powers, finding reciprocals and making products. Can you reach the target?
This problem provides a context for playing with integer and fractional powers so students can get a feel for manipulating indices and become more familiar with commonly used powers of smaller numbers.
This resource has comprehensive teachers' notes and resources, linked from the problem page. This includes possible approaches and key questions, as well as possible support and extensions.
The file attached is a HTML file, which, when opened, automatically redirects you to the problem on the NRICH website.
Key Stage: 4 ★
In this version of countdown, you are restricted to taking powers, finding reciprocals and making products. Can you reach the target?
This problem provides a context for playing with integer and fractional powers so students can get a feel for manipulating indices and become more familiar with commonly used powers of smaller numbers.
This resource has comprehensive teachers' notes and resources, linked from the problem page. This includes possible approaches and key questions, as well as possible support and extensions.
The file attached is a HTML file, which, when opened, automatically redirects you to the problem on the NRICH website.
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This is an excellent variation of the game countdown which would make a brilliant plenary when you are doing powers and roots. You would probably have to copy and paste the numbers and the target onto a powerpoint to use this to full effect as it is just currently a word document. Thank you for sharing.
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