Key learning points

1. Expressions involving repeated addition can be written more simply.
2. Expressions involving multiplication can be written more simply using algebra conventions.
3. Expressions involving algebraic terms can be written in index form.
4. Some conventions make it more simple to read expressions.

Keywords

• Term - A term is single number or letter, or the product of numbers and/or variables. Each term is separated by the operators + and –

• Expression - Expressions contain one or more terms, where each term is separated by an operator.

• Conventions - Mathematical conventions are notations or processes generally agreed upon.

Common misconception