problem
Highest and Lowest
Age
7 to 11
Challenge level
Put operations signs between the numbers 3 4 5 6 to make the highest possible number and lowest possible number.
problem
Zios and Zepts
Age
7 to 11
Challenge level
On the planet Vuv there are two sorts of creatures. The Zios have 3 legs and the Zepts have 7 legs. The great planetary explorer Nico counted 52 legs. How many Zios and how many Zepts were there?
problem
Four goodness sake
Age
7 to 11
Challenge level
Use 4 four times with simple operations so that you get the answer 12. Can you make 15, 16 and 17 too?
problem
This Pied Piper of Hamelin
Age
7 to 11
Challenge level
Investigate the different numbers of people and rats there could have been if you know how many legs there are altogether!