Multiplication and division

problem

A-Magical Number Maze

Age

7 to 11

Challenge level

2 out of 3

This magic square has operations written in it, to make it into a maze. Start wherever you like, go through every cell and go out a total of 15!
problem

Buckets of Thinking

Age

7 to 11

Challenge level

2 out of 3

There are three buckets each of which holds a maximum of 5 litres. Use the clues to work out how much liquid there is in each bucket.
problem

Sept03 Sept03 Sept03

Age

7 to 11

Challenge level

2 out of 3

This number has 903 digits. What is the sum of all 903 digits?
problem

The Number Crunching Machine

Age

7 to 11

Challenge level

2 out of 3

Put a number at the top of the machine and collect a number at the bottom. What do you get? Which numbers get back to themselves?
problem

1, 2, 3, 4, 5

Age

7 to 11

Challenge level

2 out of 3

Using the numbers 1, 2, 3, 4 and 5 once and only once, and the operations x and ÷ once and only once, what is the smallest whole number you can make?
problem

Clever Santa

Age

7 to 11

Challenge level

2 out of 3

All the girls would like a puzzle each for Christmas and all the boys would like a book each. Solve the riddle to find out how many puzzles and books Santa left.
problem

Function Machines

Age

7 to 11

Challenge level

2 out of 3

If the numbers 5, 7 and 4 go into this function machine, what numbers will come out?
problem

Number the Sides

Age

7 to 11

Challenge level

2 out of 3

The triangles in these sets are similar - can you work out the lengths of the sides which have question marks?
problem

Rabbits in the Pen

Age

7 to 11

Challenge level

2 out of 3

Using the statements, can you work out how many of each type of rabbit there are in these pens?
problem

Bundles of Cubes

Age

7 to 11

Challenge level

2 out of 3

Watch this animation. What do you notice? What happens when you try more or fewer cubes in a bundle?