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Online Self-Tests(A31)


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

    (1 point)

    15+

    =

    		24


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

    (1 point)

    11+

    =

    		28


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

    (1 point)

    		+6

    =

    		32


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

    (1 point)

    		+17

    =

    		21


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

    (1 point)

    25+

    =

    		31


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

    (1 point)

    		+9

    =

    		26