If two rational numbers are added, is the sum greater than each addend? If two rational numbers are subtracted, is the difference less than the subtracted? Please explain the reason

If two rational numbers are added, is the sum greater than each addend? If two rational numbers are subtracted, is the difference less than the subtracted? Please explain the reason

For example: isn't 1 + (- 3) = - 2 less than 1? It's different if there are no negative numbers or all negative numbers
Isn't 1 - (- 3) = 4 greater than 1? It's different if the subtracted is positive. The subtracted is negative, for example: - 3 - (- 6) = 3 is the same, so it depends on the situation