The absolute value of a rational number is equal to the opposite number of the number,

The absolute value of a rational number is equal to the opposite number of the number,

Cuo
This could be 0.

If the sum of two rational numbers is negative, then the two rational numbers

If the sum of two rational numbers is negative, then the two rational numbers (at least one negative)

If the sum of two rational numbers is negative, then the two rational numbers (at least one negative number)