Multiplication and division

  • The Clockmaker's Birthday Cake
    problem

    The Clockmaker's Birthday Cake

    Age
    7 to 11
    Challenge level
    filled star empty star empty star
    The clockmaker's wife cut up his birthday cake to look like a clock face. Can you work out who received each piece?
  • A Conversation Piece
    problem

    A Conversation Piece

    Age
    7 to 11
    Challenge level
    filled star empty star empty star
    Take the number 6 469 693 230 and divide it by the first ten prime numbers and you'll find the most beautiful, most magic of all numbers. What is it?
  • Clock Face
    problem

    Clock Face

    Age
    7 to 11
    Challenge level
    filled star empty star empty star

    Where can you draw a line on a clock face so that the numbers on both sides have the same total?

  • Gift Stacks
    problem

    Gift Stacks

    Age
    7 to 11
    Challenge level
    filled star empty star empty star
    Use the information to work out how many gifts there are in each pile.
  • Number Tracks
    problem

    Number Tracks

    Age
    7 to 11
    Challenge level
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    Ben's class were cutting up number tracks. First they cut them into twos and added up the numbers on each piece. What patterns could they see?

  • The Money Maze
    problem

    The Money Maze

    Age
    7 to 11
    Challenge level
    filled star empty star empty star
    Go through the maze, collecting and losing your money as you go. Which route gives you the highest return? And the lowest?
  • Cows and Sheep
    problem

    Cows and Sheep

    Age
    7 to 11
    Challenge level
    filled star empty star empty star

    Use your logical reasoning to work out how many cows and how many sheep there are in each field.

  • Fingers and Hands
    problem

    Fingers and Hands

    Age
    7 to 11
    Challenge level
    filled star empty star empty star
    How would you count the number of fingers in these pictures?
  • Sort them out (2)
    problem

    Sort Them Out (2)

    Age
    7 to 11
    Challenge level
    filled star empty star empty star
    Can you each work out the number on your card? What do you notice? How could you sort the cards?
  • Lemons and Oranges
    problem

    Lemons and Oranges

    Age
    7 to 11
    Challenge level
    filled star empty star empty star
    Can you work out how many lemons are on the table?