Key learning points

1. Division and multiplication have the same priority.
2. With addition and subtraction, subtractions can all be re-written as additions of the additive inverse.
3. Brackets can make the priority much clearer and avoid ambiguity.
4. Sometimes brackets can be implicit.

Keywords

• Additive inverse - The additive inverse of a number is a number that, when added to the original number, gives the sum of 0.

• Commutative - An operation is commutative if the values it is operating on can be written in either order without changing the calculation.

Common misconception