Overturning Fracsum
Age 16 to 18
Challenge Level
Can you solve the system of equations to find the values of x, y and z?
Always Two
Age 14 to 18
Challenge Level
Find all the triples of numbers a, b, c such that each one of them plus the product of the other two is always 2.
Symmetricality
Age 14 to 18
Challenge Level
Five equations and five unknowns. Is there an easy way to find the unknown values?
Simultaneous Equations Sudoku
Age 11 to 18
Challenge Level
Solve the equations to identify the clue numbers in this Sudoku problem.
Mind Your Ps and Qs
Age 16 to 18
Challenge Level
Sort these mathematical propositions into a series of 8 correct statements.
Agile Algebra
Age 16 to 18
Challenge Level
Observe symmetries and engage the power of substitution to solve complicated equations.
Mega Quadratic Equations
Age 16 to 18
Challenge Level
What do you get when you raise a quadratic to the power of a quadratic?
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NRICH is part of the family of activities in the Millennium Mathematics Project.
NRICH is part of the family of activities in the Millennium Mathematics Project.