An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.
Choose any three by three square of dates on a calendar page...
Investigate how you can work out what day of the week your birthday will be on next year, and the year after...
This poster is based on the problem Mystic Rose.
The poster is available as a pdf.
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This poster is also available as a .png image by clicking here.