Addition and subtraction

  • Nice or Nasty
    problem

    Nice or nasty

    Age
    7 to 11
    Challenge level
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    There are nasty versions of this dice game but we'll start with the nice ones...

  • Which symbol?
    problem

    Which symbol?

    Age
    7 to 11
    Challenge level
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    Choose a symbol to put into the number sentence.

  • Fingers and Hands
    problem

    Fingers and hands

    Age
    7 to 11
    Challenge level
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    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
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    Can you each work out the number on your card? What do you notice? How could you sort the cards?
  • How do you do it?
    problem

    How do you do it?

    Age
    7 to 11
    Challenge level
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    This group activity will encourage you to share calculation strategies and to think about which strategy might be the most efficient.

  • Planning a School Trip
    problem

    Planning a school trip

    Age
    7 to 11
    Challenge level
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    You are organising a school trip and you need to write a letter to parents to let them know about the day. Use the cards to gather all the information you need.

  • Follow the numbers
    problem

    Follow the numbers

    Age
    7 to 11
    Challenge level
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    What happens when you add the digits of a number then multiply the result by 2 and you keep doing this? You could try for different numbers and different rules.

  • Journeys in Numberland
    problem

    Journeys in Numberland

    Age
    7 to 11
    Challenge level
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    Tom and Ben visited Numberland. Use the maps to work out the number of points each of their routes scores.

  • problem

    Fifteen cards

    Age
    7 to 11
    Challenge level
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    Can you use the information to find out which cards I have used?

  • Take three numbers
    problem

    Take three numbers

    Age
    7 to 11
    Challenge level
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    What happens when you add three numbers together? Will your answer be odd or even? How do you know?