NAM = NGM x (TAS/GS) = 2500 x (470/440) = 2670 NAM

From table 212 800 kg → 8083 NAM

(8083 – 2670) = 5413 NAM → 180 329 kg

Fuel = (212 800 – 180 329) = 32 471 kg

Total Anti-ice 0n +6% = 32 471 x 1.06 = 34 419 kg (correct answer 34430kg)

ISA, no correction for climb/descent