Addition and subtraction

  • Two Number Lines
    problem

    Two Number Lines

    Age
    7 to 11
    Challenge level

    Max and Mandy put their number lines together to make a graph. How far had each of them moved along and up from 0 to get the counter to the place marked?

  • Cows and Sheep
    problem

    Cows and Sheep

    Age
    7 to 11
    Challenge level

    Use your logical reasoning to work out how many cows and how many sheep there are in each field.

  • Lengthy journeys
    problem

    Lengthy Journeys

    Age
    7 to 11
    Challenge level

    Investigate the different distances of these car journeys and find out how long they take.

  • Fingers and Hands
    problem

    Fingers and Hands

    Age
    7 to 11
    Challenge level

    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

    Can you each work out the number on your card? What do you notice? How could you sort the cards?

  • Journeys
    problem

    Journeys

    Age
    7 to 11
    Challenge level

    Investigate the different distances of these car journeys and find out how long they take.

  • Sums and Differences 1
    problem

    Sums and Differences 1

    Age
    7 to 11
    Challenge level

    This challenge focuses on finding the sum and difference of pairs of two-digit numbers.

  • Sums and Differences 2
    problem

    Sums and Differences 2

    Age
    7 to 11
    Challenge level

    Find the sum and difference between a pair of two-digit numbers. Now find the sum and difference between the sum and difference! What happens?

  • First Connect Three for Two
    game

    First Connect Three for Two

    Age
    7 to 11
    Challenge level

    First Connect Three game for an adult and child. Use the dice numbers and either addition or subtraction to get three numbers in a straight line.

  • Folded Number Line
    problem

    Folded Number Line

    Age
    7 to 11
    Challenge level

    When I fold a 0-20 number line, I end up with 'stacks' of numbers on top of each other. These challenges involve varying the length of the number line and investigating the 'stack totals'.

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