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Online Self-Tests(A28)


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

    (1 point)

    37+

    =

    		56


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

    (1 point)

    21+

    =

    		42


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

    (1 point)

    		+63

    =

    		85


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

    (1 point)

    		+39

    =

    		84


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

    (1 point)

    264+

    =

    		343


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

    (1 point)

    		+83

    =

    		122