Question

What’s the Error? Reeta evaluated – 4 + d for d = –6 and gave an answer of 2. What might Reeta have done wrong?

Answer 1

d= (-6)

-4+d=x
-4+(-6)=x    {plus and minus =minus}
-4-6=-12   {minus and minus is plus but as the nos. are negative negative                      symbol will come before the integers}


she might have taken -4+6 instead of taking -4-6

Answer 2

-4+(-6)=x
-4-6=x
x=-12

In the second step, Reeta might have taken -4+6, so she got the answer as 2. But its wrong.