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From paving your patio to measuring the ingredients for your latest recipe, squares, roots and powers really are part of everyday life. This free course reviews the basics of all three and also describes scientific notation, which is a convenient way of writing or displaying large numbers.
After studying this course, you should be able to:
- evaluate the squares, cubes and other powers of positive and negative numbers with or without your calculator
- estimate square roots and calculate them using your calculator
- describe the power notation for expressing numbers
- use your calculator to find powers of numbers
- multiply and divide powers of the same number.
- Current section: Introduction
- Learning outcomes
- 1 Squares, cubes and roots
- 2 Powers
- 3 Scientific notation
- 4 Open Mark quiz
- Keep on learning
Study this free course
Enrol to access the full course, get recognition for the skills you learn, track your progress and on completion gain a statement of participation to demonstrate your learning to others. Make your learning visible!
Squares, roots and powers
This free course, Squares, roots and powers, reminds you about powers of numbers, such as squares and square roots. In particular, powers of 10 are used to express large and small numbers in a convenient form, known as scientific notation, which is used by scientific calculators.
This OpenLearn course provides a sample of level 1 study in.
This free course includes adapted extracts from an Open University course which is no longer available to new students. If you found this interesting you could explore more free Mathematics Education courses or view the range of currently available OU Mathematics Education courses.
Copyright & revisions
Originally published: Monday, 25th April 2016
Last updated on: Monday, 25th April 2016
- Creative-Commons: The Open University is proud to release this free course under a Creative Commons licence. However, any third-party materials featured within it are used with permission and are not ours to give away. These materials are not subject to the Creative Commons licence. See terms and conditions. Full details can be found in the Acknowledgements and our FAQs section.
- This site has Copy Reuse Tracking enabled - see our FAQs for more information.
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