These problems have some challenging elements where you might get stuck. Don't worry, we've put in some helpful hints to get you unstuck again! So get stuck in, and stick to it - you may surprise yourself!
problem
Favourite
Number lines in disguise
Age
7 to 14
Challenge level
Some of the numbers have fallen off Becky's number line. Can you figure out what they were?
problem
Favourite
Same length
Age
11 to 16
Challenge level
Construct two equilateral triangles on a straight line. There are two lengths that look the same - can you prove it?
problem
Favourite
Shopping basket
Age
11 to 16
Challenge level
The items in the shopping basket add and multiply to give the same amount. What could their prices be?
list
What if...?
Age
11 to 16
Challenge level
These problems will make you say "I wonder what happens if...?"