Different by One
Age 14 to 16 Challenge Level:
Can you make lines of Cuisenaire rods that differ by 1?
Steel Cables
Age 14 to 16 Challenge Level:
Some students have been working out the number of strands needed for different sizes of cable. Can you make sense of their solutions?
Difference of Two Squares
Age 14 to 16 Challenge Level:
What is special about the difference between squares of numbers adjacent to multiples of three?
Standard Index Form Matching
Age 14 to 16 Challenge Level:
Can you match these calculations in Standard Index Form with their answers?
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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.