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Online Self-Tests(A33)


  • 1. Determine the unknown value that makes the equation true.


    (1 point)

    643+

    =

    813


  • 2. Determine the unknown value that makes the equation true.


    (1 point)

    153+

    =

    256


  • 3. Determine the unknown value that makes the equation true.


    (1 point)

    +103

    =

    329


  • 4. Determine the unknown value that makes the equation true.


    (1 point)

    +57

    =

    145


  • 5. Determine the unknown value that makes the equation true.


    (1 point)

    72+

    =

    424


  • 6. Determine the unknown value that makes the equation true.


    (1 point)

    +703

    =

    948