Exploring and noticing

  • Round the Four Dice
    problem
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    Round the Four Dice

    Age
    7 to 11
    Challenge level
    1 out of 3

    This activity involves rounding four-digit numbers to the nearest thousand.

  • Round the Dice Decimals 2
    problem
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    Round the Dice Decimals 2

    Age
    7 to 11
    Challenge level
    1 out of 3

    What happens when you round these numbers to the nearest whole number?

  • Round the Three Dice
    problem
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    Round the Three Dice

    Age
    7 to 11
    Challenge level
    1 out of 3

    What happens when you round these three-digit numbers to the nearest 100?

  • Round the Dice Decimals 1
    problem
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    Round the Dice Decimals 1

    Age
    7 to 11
    Challenge level
    1 out of 3

    Use two dice to generate two numbers with one decimal place. What happens when you round these numbers to the nearest whole number?

  • Multiply Multiples 3
    problem
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    Multiply Multiples 3

    Age
    7 to 11
    Challenge level
    1 out of 3

    Have a go at balancing this equation. Can you find different ways of doing it?

  • Division Rules
    problem
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    Division Rules

    Age
    7 to 11
    Challenge level
    1 out of 3

    This challenge encourages you to explore dividing a three-digit number by a single-digit number.

  • Name That Triangle!
    problem
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    Name That Triangle!

    Age
    7 to 11
    Challenge level
    1 out of 3

    Can you sketch triangles that fit in the cells in this grid? Which ones are impossible? How do you know?

  • Compare the Calculations
    problem
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    Compare the Calculations

    Age
    7 to 11
    Challenge level
    1 out of 3

    Can you put these four calculations into order of difficulty? How did you decide?

  • Seeing Parallelograms
    problem
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    Seeing Parallelograms

    Age
    7 to 11
    Challenge level
    1 out of 3

    Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a parallelogram.

  • Digit Discovery
    problem
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    Digit Discovery

    Age
    7 to 11
    Challenge level
    1 out of 3

    Here is an interesting property about two sets of digits. Can you work out what the digits might be?