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Students show how to solve a series of algebraic expressions by substituting given numbers.

Students solve a number of mathematical problems about the cost of a visit to the fair using algebraic expressions provided.

Students use substitution to evaluate a linear equation for parking charges. Students expand, simplify, and change the subject of the equation.

Students use substitution to calculate a missing variable in algebraic expressions of practical situations.

Students use substitution into equations to evaluate the number of blocks and total surface areas in shapes of different heights. The stimulus can be used as a challenging task to try and derive the rules from the spatial pattern. This is classified as Patterns and Relationships.

Students write and solve linear equations to describe cooking times.

Students complete a table based on an algebraic formula for free fall velocity, plot the results, and interpret the graph.