Solve: - ⁺3 - ⁺11 + ⁺15 + ⁻8.
Solve: + ⁺15 + ⁻4 + ⁻11.
Solve: - ⁺0 + ⁺3 - ⁺11 + ⁺12
What is the result: +(-8) ÷ 2 = ?
What is the result: + (-2) . (-3) = ?
