Addition and subtraction

  • Hubble, bubble
    problem

    Hubble, bubble

    Age
    7 to 11
    Challenge level
    filled star filled star empty star
    Winifred Wytsh bought a box each of jelly babies, milk jelly bears, yellow jelly bees and jelly belly beans. In how many different ways could she make a jolly jelly feast with 32 legs?
  • How Old?
    problem

    How old?

    Age
    7 to 11
    Challenge level
    filled star filled star empty star
    Cherri, Saxon, Mel and Paul are friends. They are all different ages. Can you find out the age of each friend using the information?
  • On Target
    problem

    On target

    Age
    7 to 11
    Challenge level
    filled star filled star filled star
    You have 5 darts and your target score is 44. How many different ways could you score 44?
  • Super Value Shapes
    problem

    Super value shapes

    Age
    7 to 11
    Challenge level
    filled star empty star empty star
    If each of these three shapes has a value, can you find the totals of the combinations? Perhaps you can use the shapes to make the given totals?
  • One Big Triangle
    problem

    One big triangle

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

    Make one big triangle so the numbers that touch on the small triangles add to 10.

  • X is 5 squares
    problem

    X is 5 squares

    Age
    7 to 11
    Challenge level
    filled star filled star empty star
    Can you arrange 5 different digits (from 0 - 9) in the cross in the way described?
  • Number Round Up
    problem

    Number round up

    Age
    5 to 7
    Challenge level
    filled star filled star filled star
    Arrange the numbers 1 to 6 in each set of circles below. The sum of each side of the triangle should equal the number in its centre.
  • Buying a Balloon
    problem

    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?
  • Starfish Spotting
    problem

    Starfish spotting

    Age
    5 to 7
    Challenge level
    filled star filled star empty star
    How many starfish could there be on the beach, and how many children, if I can see 28 arms?
  • 4 Dom
    problem

    4 dom

    Age
    5 to 11
    Challenge level
    filled star filled star filled star
    Use these four dominoes to make a square that has the same number of dots on each side.