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Month Mania
Can you design a new shape for the twenty-eight squares and arrange the numbers in a logical way? What patterns do you notice?
Neighbours
In a square in which the houses are evenly spaced, numbers 3 and 10 are opposite each other. What is the smallest and what is the largest possible number of houses in the square?
Page Numbers
Exactly 195 digits have been used to number the pages in a book. How many pages does the book have?
Age 7 to 11 Challenge Level:
Place the numbers 1 to 8 in the circles so that no consecutive numbers are joined by a line. (Consecutive means numbers next to each other when counting, like 3 and 4).
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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.