7th Class Mathematics Integers Question Bank Integer

  • question_answer
    If a and b are integers and \[a\ne b,\] then which of the following is INCORRECT ?

    A)  \[a+b=b+a\]

    B)  \[a-b=b-a\]

    C)  \[a+0=0+a=a\]

    D)  \[a-0=a\ne 0-a\]

    Correct Answer: B

    Solution :

    \[\because \]  \[a-b\ne b-a\]


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