Q. 1205.0( 2 Votes )

What’s the Error? Ramu evaluated the expression –7 – (–3) and came up with the answer –10. What did Ramu do wrong?

Answer :

Let us solve the expression for Ramu.

We have, -7 – (-3) = -7 + 3 [ minus & minuns = plus]


-7 – (-3) = -4 [ 7 is the greatest amongst 7 and 3, so the sign before 7 will be considered in the result]


The answer is coming out to be -4 while what Ramu did was add -7 and -3 and neglected a minus sign in-between -7 and -3.


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