Addition and subtraction

  • Rabbits in the pen
    problem

    Rabbits in the pen

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

    Oh! Harry!

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

    A group of children are using measuring cylinders but they lose the labels. Can you help relabel them?

  • problem

    This Pied Piper of Hamelin

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

    Investigate the different numbers of people and rats there could have been if you know how many legs there are altogether!

  • problem

    How much did it cost?

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

    Use your logical thinking skills to deduce how much Dan's crisps and ice cream cost altogether.

  • Six Ten Total
    problem

    Six ten total

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

    This challenge combines addition, multiplication, perseverance and even proof.

  • Six Numbered Cubes
    problem

    Six numbered cubes

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

    This task combines spatial awareness with addition and multiplication.

  • Bundles of Cubes
    problem

    Bundles of cubes

    Age
    7 to 11
    Challenge level
    filled star filled star empty star
    Watch this animation. What do you notice? What happens when you try more or fewer cubes in a bundle?
  • Dart Target
    problem

    Dart target

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

    This task, written for the National Young Mathematicians' Award 2016, invites you to explore the different combinations of scores that you might get on these dart boards.

  • Painting Possibilities
    problem

    Painting possibilities

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

    This task, written for the National Young Mathematicians' Award 2016, involves open-topped boxes made with interlocking cubes. Explore the number of units of paint that are needed to cover the boxes and the small cubes that would fit inside each one.

  • Open Squares
    problem

    Open squares

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

    This task, written for the National Young Mathematicians' Award 2016, focuses on 'open squares'. What would the next five open squares look like?