Squares, roots and powers

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.

• Introduction
• Learning outcomes
• 1 Squares, cubes and roots
• 1 Squares, cubes and roots
• 1.1 Squares
• 1.1.1 Try some yourself
• 1.2 Squaring fractions and negative numbers
• 1.2.1 Try some yourself
• 1.3 Square roots
• 1.3.1 Try some yourself
• 1.4 Cubes
• 1.4.1 Try some yourself
• 2 Powers
• 2 Powers
• 2.1 The impact of a power
• 2.1.1 Try some yourself
• 2.2 Power notation
• 2.2.1 Try some yourself
• 2.3 Multiplying powers
• 2.3.1 Try some yourself
• 2.4 Dividing powers
• 2.4.1 Try some yourself
• 2.5 The power zero
• 2.5.1 Try some yourself
• 2.6 Negative powers
• 2.6.1 Try some yourself
• 3 Scientific notation
• 3 Scientific notation
• 3.1 Expressing numbers in scientific notation
• 3.1.1 Try some yourself
• 3.2 Using scientific notation
• 3.2.1 Try some yourself
• 4 Open Mark quiz
• 4 Open Mark quiz
• Conclusion
• Acknowledgements