3 months ago
Last edited at 4:36AM on 9/10/2013
what is there to explain? the question (-3+5) actually in arithmetic means +5-3.and in algebra there is a rule that,+ and - = - and which is the greater num, Its sign is used in the ans so we should sub the other number from the greater num which is 5,and 5-3 =2. as i've said before we should use the sign of the greater num then the ans is +2 but we don't write it because in case there is - in the ans then only we keep sign. But in our ans there is +, but we don't write it.So, the ans is 2.