Key learning points

1. Calculations can be evaluated by following the standard order of operations for 4 operations.
2. Calculations including exponents and brackets can be evaluated following the standard order of operations.
3. A bar model can be used to represent an equation.
4. A bar model can be used to find unknowns in a simple equation.

Keywords

• Equation - An equation is used to show that one number or calculation is equal to another.

• Exponent - An exponent is a number positioned above and to the right of a base value. It indicates repeated multiplication.

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

Common misconception