Ответ:

  1. 1011₂ = 1·2³ + 0·2² + 1·2¹ + 1·2⁰ = 8 + 2 + 1 = 11₁₀.
  2. 110101₂ = 1·2⁵ + 1·2⁴ + 0·2³ + 1·2² + 0·2¹ + 1·2⁰ = 32 + 16 + 4 + 1 = 53₁₀.
  3. 234₅ = 2·5² + 3·5¹ + 4·5⁰ = 50 + 15 + 4 = 69₁₀.
  4. 1024₈ = 1·8³ + 0·8² + 2·8¹ + 4·8⁰ = 512 + 16 + 4 = 532₁₀.
  5. 347₈ = 3·8² + 4·8¹ + 7·8⁰ = 192 + 32 + 7 = 231₁₀.
  6. 1506₈ = 1·8³ + 5·8² + 0·8¹ + 6·8⁰ = 512 + 320 + 6 = 838₁₀.