- 2 videos
## Rational and irrational numbers

- 2 videos
## Exact values or decimal approximations

- 1 video
## Approximate and compare irrational numbers

- 1 video
## Calculate decimal approximations for irrational numbers

- 2 videos
## Simplify surd expressions involving powers or algebraic terms

- 1 video
## Add and subtract numerical surds

- 1 video
## Multiply numeric surds

- 1 video
## Surds and binomial expansions

- 3 videos
## Rationalise the denominator

- 2 videos
## Use a calculator for surds