### Consecutive Numbers

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

### Have You Got It?

Can you explain the strategy for winning this game with any target?

### Pair Sums

Five numbers added together in pairs produce: 0, 2, 4, 4, 6, 8, 9, 11, 13, 15 What are the five numbers?

# Smallest Fraction

##### Age 11 to 14 Short Challenge Level:

Which of these is the smallest?

$$\frac{2+3}{4+6}\hspace{30mm}\frac{2\div3}{4\div6}\hspace{30mm}\frac{23}{46}\hspace{30mm}\frac{2-3}{4-6}\hspace{30mm}\frac{2\times3}{4\times6}$$

This problem is taken from the World Mathematics Championships
You can find more short problems, arranged by curriculum topic, in our short problems collection.