The sum of two numbers with the same sign (either both positive or both negative) will also have the same sign.
True
False
True
True.
True.
To understand why, you can think of it in terms of positive and negative numbers on a number line. When you add two positive numbers, the result is always positive because both numbers are on the same side of zero. Similarly, when you add two negative numbers, the result is also negative because both numbers are on the same side of zero. Therefore, the sum of two numbers with the same sign will always have the same sign as the two original numbers.