Comparing and Estimating

  • Fitted
    problem
    Favourite

    Fitted

    Age
    7 to 11
    Challenge level

    Nine squares with side lengths 1, 4, 7, 8, 9, 10, 14, 15, and 18 cm can be fitted together to form a rectangle. What are the dimensions of the rectangle?

  • Ribbon Squares
    problem
    Favourite

    Ribbon Squares

    Age
    7 to 11
    Challenge level

    What is the largest 'ribbon square' you can make? And the smallest? How many different squares can you make altogether?

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