Multiplication and division

In this game, you can add, subtract, multiply or divide the numbers on the dice. Which will you do so that you get to the end of the number line first?

In this investigation, you are challenged to make mobile phone numbers which are easy to remember. What happens if you make a sequence adding 2 each time?

The numbers 72, 8, 24, 10, 5, 45, 36, 15 are grouped in pairs so that each pair has the same product. Which number is paired with 10?

Weekly Problem 10 - 2008
If the numbers 1 to 10 are all multiplied together, how many zeros are at the end of the answer?

These eleven shapes each stand for a different number. Can you use the number sentences to work out what they are?

This Sudoku requires you to do some working backwards before working forwards.

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

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

This challenge is a game for two players. Choose two of the numbers to multiply or divide, then mark your answer on the number line. Can you get four in a row?

Find the product of the numbers on the routes from A to B. Which route has the smallest product? Which the largest?