The Problem with Problem Solving at Stage 2

The Problem with Problem Solving at Stage 2

All these problems focus on different problem solving strategies. Why not have a go and send us your solutions?

Build it Up 

Stage: 2 Challenge Level: Challenge Level:1
Can you find all the ways to get 15 at the top of this triangle of numbers?

Zios and Zepts 

Stage: 2 Challenge Level: Challenge Level:1
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?

Teddy Town 

Stage: 1, 2 and 3 Challenge Level: Challenge Level:2 Challenge Level:2
There are nine teddies in Teddy Town - three red, three blue and three yellow. There are also nine houses, three of each colour. Can you put them on the map of Teddy Town according to the rules?

Tea Cups 

Stage: 2 and 3 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3
Place the 16 different combinations of cup/saucer in this 4 by 4 arrangement so that no row or column contains more than one cup or saucer of the same colour.