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...
After one mile the milometer will read $4632$ and the trip meter
will read $174.3$.
What happens when you add $10$ miles ... $100$ miles ... to each
of the two measurements?
What are the two readings that match? Is it significant that one
number is a multiple of the other?