Estimating and approximating

  • Can you do \it too?
    problem
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    Can You Do It Too?

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

    Try some throwing activities and see whether you can throw something as far as the Olympic hammer or discus throwers.

  • Count the Crayons
    problem
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    Count the Crayons

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

    How could you estimate the number of pencils/pens in these pictures?

  • Fruity Pairs
    problem
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    Fruity Pairs

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

    Which two items of fruit could Kate and Sam choose? Can you order the prices from lowest to highest?

  • Little Man
    problem
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    Little Man

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

    The Man is much smaller than us. Can you use the picture of him next to a mug to estimate his height and how much tea he drinks?

  • Discuss and Choose
    problem
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    Discuss and Choose

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

    This activity challenges you to decide on the 'best' number to use in each statement. You may need to do some estimating, some calculating and some research.

  • Buying a Balloon
    problem
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    Buying a Balloon

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

    Lolla bought a balloon at the circus. She gave the clown six coins to pay for it. What could Lolla have paid for the balloon?

  • Nice or Nasty
    problem
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    Nice or Nasty

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

    There are nasty versions of this dice game but we'll start with the nice ones...

  • Four Go
    problem
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    Four Go

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

    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?

  • Countdown
    game
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    Countdown

    Age
    7 to 14
    Challenge level
    filled star empty star empty star

    Here is a chance to play a version of the classic Countdown Game.

  • Dicey Operations
    game
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    Dicey Operations

    Age
    7 to 14
    Challenge level
    filled star empty star empty star

    In these addition and subtraction games, you'll need to think strategically to get closest to the target.