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Online Self-Tests(A21)


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

    (1 point)

    20+

    =

    		200


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

    (1 point)

    70+

    =

    		70


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

    (1 point)

    		+0

    =

    		215


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

    (1 point)

    		+32

    =

    		320


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

    (1 point)

    100+

    =

    		200


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

    (1 point)

    		+25

    =

    		100