A negative power means the reciprocal of the number to the equivalent positive power. So 11⁻³ = 1/11³ = 1/1331 = 0.0007513 (4sf)
Add negative eleven to negative four and one third to obtain negative fifteen and one third: (-11) + (-4 1/3) = -15 1/3
11
-11+(-24) = -35
11
Negative 11.
The total is 9¼ or 37 over 4.
-11
-13
-5 + 6 = 1
"11 to the third power" means 113 or 11 X 11 X 11, or 1331.
-15 + 19 + (-26) + 11 = -41 + 30 = -11