Multiplication and division

  • Debasing the Coinage
    problem

    Debasing the coinage

    Age
    11 to 14
    Challenge level
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    How much lighter will £5 worth of 5p's be with these new lighter coins?
  • Bus Route
    problem

    Bus route

    Age
    11 to 14
    Challenge level
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    How far apart are the first and last bus stops in this bus route?
  • Shut the box
    problem

    Shut the box

    Age
    5 to 7
    Challenge level
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    An old game with lots of arithmetic!

  • problem

    Oh! Harry!

    Age
    7 to 11
    Challenge level
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    A group of children are using measuring cylinders but they lose the labels. Can you help relabel them?

  • Rabbits in the pen
    problem

    Rabbits in the pen

    Age
    7 to 11
    Challenge level
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    Using the statements, can you work out how many of each type of rabbit there are in these pens?
  • Cows and Sheep
    problem

    Cows and sheep

    Age
    7 to 11
    Challenge level
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    Use your logical reasoning to work out how many cows and how many sheep there are in each field.
  • A First Product Sudoku
    problem

    A first product Sudoku

    Age
    7 to 14
    Challenge level
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    Given the products of adjacent cells, can you complete this Sudoku?

  • Tug Harder!
    problem

    Tug harder!

    Age
    7 to 11
    Challenge level
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    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?
  • Mobile Numbers
    problem

    Mobile numbers

    Age
    5 to 11
    Challenge level
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    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?
  • Pairing Up
    problem

    Pairing up

    Age
    11 to 14
    Challenge level
    filled star empty star empty star
    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?