Error on page 10?

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  • April 17, 2013 at 1:26 pm #1887
    mjacks
    Participant

    I am not sure if this has been mentioned yet, but on the very  bottom of page 10 it states “They calculate 1/2 + 2/5 = 9/10, and see this as 1/10 less than 1 ….. They detect an incorrect result such as 2/5 + 2/5 = 3/7 by noticing that 3/7 < 1/2″ Shouldn’t it be 2/5 + 1/2 = 3/7 (just as it was written in the example with the standard 5.NF.2 in the CCSS)?

    Thanks, Malissa Jacks

    April 30, 2013 at 6:57 pm #1932
    Bill McCallum
    Keymaster

    Wow, that is a very fine catch indeed. Thanks for the close reading.

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