Find the sum of: (-10), 92, 84 and (-15).
We have four integers, two positive integers and two negative integers.
Add two positive integers separately and two negative integers separately.
(-10) + 92 + 84 + (-15)
= (-10 - 15) + (92 + 84)
= (-25) + (176)
To add two integers of opposite signs ignore the signs first, subtract the smaller one from bigger number and pit the sign of bigger after the subtraction.
-25 + 176 = +151