Being collaborative

Can you work out the domino pieces which would go in the middle in each case to complete the pattern of these eight sets of three dominoes?

Kimie and Sebastian were making sticks from interlocking cubes and lining them up. Can they make their lines the same length? Can they make any other lines?

Jack's mum bought some candles to use on his birthday cakes and when his sister was born, she used them on her cakes too. Can you use the information to find out when Kate was born?

How many balls of modelling clay and how many straws does it take to make these skeleton shapes?

Choose four of the numbers from 1 to 9 to put in the squares so that the differences between joined squares are odd.

These pieces of wallpaper need to be ordered from smallest to largest. Can you find a way to do it?

Annie and Ben are playing a game with a calculator. What was Annie's secret number?

In this problem it is not the squares that jump, you do the jumping! The idea is to go round the track in as few jumps as possible.

Pat counts her sweets in different groups and both times she has some left over. How many sweets could she have had?

Eight children each had a cube made from modelling clay. They cut them into four pieces which were all exactly the same shape and size. Whose pieces are the same? Can you decide who made each set?