Integers & Number Line

Walkthrough

Evaluate −5 + 8.

1. 1.When adding a positive number to a negative number, find the difference of their magnitudes and keep the sign of the larger magnitude.
2. 2.The magnitudes are 5 and 8; the difference is 8 − 5 = 3.
3. 3.Since 8 (positive) has the larger magnitude, the result is positive.
4. 4.On a number line: start at −5, then move 8 units to the right, landing at 3.
5. 5.So −5 + 8 = 3.