### Consecutive Numbers

An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.

### Calendar Capers

Choose any three by three square of dates on a calendar page...

### Days and Dates

Investigate how you can work out what day of the week your birthday will be on next year, and the year after...

# Solitare

##### Stage: 3 Short Challenge Level:

After $500$ games, I have won $500 \times \frac{49}{100} = 245$ games. So I have lost $255$ games. Therefore I need to win the next $10$ games to have a $50\%$ success rate.

This problem is taken from the UKMT Mathematical Challenges.