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    EGK15 Posts: 1, Reputation: 1
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    #1

    Nov 4, 2010, 05:15 PM
    Using diagrams tp solve problems
    A school has 40 classrooms. Three times as many classrooms are used for grades 4 and 5 together as for grade 6 alone. How many classrooms does grade 6 use?
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    Wondergirl Posts: 39,354, Reputation: 5431
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    #2

    Nov 4, 2010, 05:19 PM

    Draw 40 boxes ("classrooms") in rows of ten boxes per row. Then what should you do?

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