Addition and subtraction

  • Two Spinners
    problem
    Favourite

    Two Spinners

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

    What two-digit numbers can you make with these two dice? What can't you make?

  • What Could \It Be?
    problem
    Favourite

    What Could It Be?

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

    In this calculation, the box represents a missing digit. What could the digit be? What would the solution be in each case?

  • Unit Differences
    problem
    Favourite

    Unit Differences

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

    This challenge is about finding the difference between numbers which have the same tens digit.

  • Five Steps to 50
    problem
    Favourite

    Five Steps to 50

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

    Use five steps to count forwards or backwards in 1s or 10s to get to 50. What strategies did you use?

  • Double or Halve?
    problem
    Favourite

    Double or Halve?

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

    Throw the dice and decide whether to double or halve the number. Will you be the first to reach the target?

  • Fruity Pairs
    problem
    Favourite

    Fruity Pairs

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

    Which two items of fruit could Kate and Sam choose? Can you order the prices from lowest to highest?

  • Subtraction Slip
    problem
    Favourite

    Subtraction Slip

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

    Can you spot the mistake in this video? How would you work out the answer to this calculation?

  • Equivalent Pairs
    problem
    Favourite

    Equivalent Pairs

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

    Can you match pairs of cards which show the same amount?

  • problem
    Favourite

    Noah

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

    Noah saw 12 legs walk by into the Ark. How many creatures did he see?