1) 11110₂ = 1*2⁴ + 1*2³ + 1*2² + 1*2¹ + 0*2⁰ = 16 + 8 + 4 + 2 + 0 = 30₁₀
2) 110100₂ = 1*2⁵ + 1*2⁴ + 0*2³ + 1*2² + 0*2¹ + 0*2⁰ = 32 + 16 + 0 + 4 + 0 + 0 = 52₁₀
3) 11000₂ = 1*2⁴ + 1*2³ + 0*2² + 0*2¹ + 0*2⁰ = 16 + 8 + 0 + 0 + 0 = 24₁₀
Ответ: 1) 30₁₀; 2) 52₁₀; 3) 24₁₀.