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Displaying results 1 to 4 of 4.

4

Working out the unknown number

Pencil and paper
Keywords: 
additive identity
commutativity
equations
relational thinking
Students find the unknown for a range of equations that require number property knowledge and understanding of relational thinking.
4

Finding the value of n

Pencil and paper
Keywords: 
equations
linear equations
Students show how they find the value of an unknown number in a range of linear equations.
4

Doing the lawn

Auto-markingPencil and paperOnline interactive
Keywords: 
linear equations
money
Students calculate the charges for lawn mowing expressed as rate plus set-up cost.
4
5

Rescue helicopters

Pencil and paper
Keywords: 
breakeven points
linear equations
money
simultaneous equations
Students calculate the cost of hiring a search and rescue helicopter and compare this cost with another helicopter company's charges.