Addition and subtraction

  • What's in a Name?
    problem

    What's in a name?

    Age
    5 to 7
    Challenge level
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    What do you notice about these squares of numbers? What is the same? What is different?

  • Planet Plex Time
    problem

    Planet plex time

    Age
    5 to 7
    Challenge level
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    On Planet Plex, there are only 6 hours in the day. Can you answer these questions about how Arog the Alien spends his day?
  • problem

    Robot monsters

    Age
    5 to 7
    Challenge level
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    Use these head, body and leg pieces to make Robot Monsters which are different heights.

  • Cuisenaire Counting
    problem

    Cuisenaire counting

    Age
    5 to 7
    Challenge level
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    Here are some rods that are different colours. How could I make a yellow rod using white and red rods?

  • Number Balance
    problem

    Number balance

    Age
    5 to 7
    Challenge level
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    Can you hang weights in the right place to make the the number balance balanced?

  • Domino Sorting
    problem

    Domino sorting

    Age
    5 to 7
    Challenge level
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    Try grouping the dominoes in the ways described. Are there any left over each time? Can you explain why?

  • Number Lines
    problem

    Number lines

    Age
    5 to 7
    Challenge level
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    Leah and Tom each have a number line. Can you work out where their counters will land?

  • Tug of War
    problem

    Tug of war

    Age
    5 to 7
    Challenge level
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    Can you use the numbers on the dice to reach your end of the number line before your partner beats you?

  • Shut the box
    problem

    Shut the box

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

    An old game with lots of arithmetic!

  • Sort them out (1)
    problem

    Sort them out (1)

    Age
    5 to 7
    Challenge level
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    Can you each work out the number on your card? What do you notice? How could you sort the cards?