2.3
Expressions & formulae
Change of subject; using/rearranging formulae.
Syllabus Statements
- Understand that a letter may represent an unknown number or a variable
- Use correct notational conventions for algebraic expressions and formulae
- Substitute positive and negative integers, decimals and fractions for words and letters in expressions and formulae
- Use formulae from mathematics and other real-life contexts expressed initially in words or diagrammatic form and convert to letters and symbols
- Derive a formula or expression
- Change the subject of a formula where the subject appears once
2.3.1 Form Expressions and Equations
Corbett Maths · Video
Rearranging Harder Formulae Video
2.3.2 Changing the Subject of the Formula
Corbett Maths · Video
Changing the Subject of a Formula