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math

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what is the difference between a number sentence and an expression?

  • math - ,

    A neumber sentence has an equal sign, and is a sentence as long as it holds true
    ex true:3+7=10
    False: 13+1=15
    an expession does not have an equal sign
    ex: 3+4/5*3

  • math - ,

    Make a true sentence by inserting parentheses.4x9-2=28

  • math - ,

    4 x (9-2) = 28

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