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Online Self-Tests(A31)


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

    (1 point)

    18+

    =

    		54


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

    (1 point)

    50+

    =

    		200


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

    (1 point)

    		+6

    =

    		36


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

    (1 point)

    		+45

    =

    		135


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

    (1 point)

    3+

    =

    		30


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

    (1 point)

    		+15

    =

    		75