Numbers greater than zero are called positive numbers.
Numbers less than zero are called negative numbers.
In the case of negative integers, greater the number, lesser its value. i.e. -6 < -2
- Numbers with the same sign are simply added and the sum has the same sign as that of the numbers.
E.g. (+5) + (+7)= (+12) and (-5) + (-7)= (-12)
- Numbers with different signs are actually subtracted and the difference has the sign of the greater number.
E.g. (+5) + (-7)= (-2) and (-5) + (+7)= (+2)
If two numbers are added to each other and the sum is zero, the numbers are said to be the additive inverse of each other.
E.g. (+5)+(-5) = 0 therefore (+5) and (-5) are additive inverse of each other.