Mathematics

9th

grade

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Properties of Real Numbers

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10 questions

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  • 1. Multiple Choice
    45 seconds
    1 pt

    The Commutative Property states that when adding or multiplying two or more numbers or terms, order is not important. That is:

    2+7=7+22+7=7+2

    3×5=5×33\times5=5\times3

    72=277-2=2-7

    50÷10=10÷5050\div10=10\div50

  • 2. Multiple Choice
    45 seconds
    1 pt

    The Associative Property states that when adding or multiplying three or more numbers or terms together, grouping is not important. That is:

    (5+2)+6=5+(2+6)\left(5+2\right)+6=5+\left(2+6\right)

    (5×2)×6=5×(2×6)\left(5\times2\right)\times6=5\times\left(2\times6\right)

    (52)3=5(23)\left(5-2\right)-3=5-\left(2-3\right)

    (20÷4)÷2=20÷(4÷2)\left(20\div4\right)\div2=20\div\left(4\div2\right)

  • 3. Multiple Choice
    45 seconds
    1 pt

    The Distributive Property states that for any three terms a,b, and c: a(b+c)=ab+aca\left(b+c\right)=ab+ac 
    Select the answer below that models this

     4(3+2)=(4×3)+(4×2)4\left(3+2\right)=\left(4\times3\right)+\left(4\times2\right)  

     5(6+7)=56+575\left(6+7\right)=56+57  

     4(3+2)=(4+3)×(4+2)4\left(3+2\right)=\left(4+3\right)\times\left(4+2\right)  

     5(6+7)=5×6×75\left(6+7\right)=5\times6\times7  

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