Positive and negative numbers

  • First Connect Three
    problem

    First connect three

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

    Add or subtract the two numbers on the spinners and try to complete a row of three. Are there some numbers that are good to aim for?

  • Tug Harder!
    problem

    More Tug of war

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

    In this game, you can add, subtract, multiply or divide the numbers on the dice. Which will you do so that you get to the end of the number line first?

  • Sea Level
    problem

    Sea level

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

    What numbers would you put on this number line as it goes under the sea level?

  • First Connect Three for Two
    game

    First connect three for two

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

    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.

  • Consecutive Numbers
    problem

    Consecutive numbers

    Age
    7 to 14
    Challenge level
    filled star empty star empty star

    An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.

  • Number Lines in Disguise
    problem

    Number lines in disguise

    Age
    7 to 14
    Challenge level
    filled star filled star empty star

    Some of the numbers have fallen off Becky's number line. Can you figure out what they were?

  • Strange Bank Account
    problem

    Strange bank account

    Age
    11 to 14
    Challenge level
    filled star empty star empty star

    Imagine a very strange bank account where you are only allowed to do two things...

  • Up, down, flying around
    game
    Favourite

    Up, down, flying around

    Age
    11 to 14
    Challenge level
    filled star empty star empty star

    Play this game to learn about adding and subtracting positive and negative numbers

  • Weights
    problem

    Weights

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    Different combinations of the weights available allow you to make different totals. Which totals can you make?