a) 6³ : 3 = (6 × 6 × 6) : 3 = 216 : 3 = 72
б) 2³ × 3² = (2 × 2 × 2) × (3 × 3) = 8 × 9 = 72
в) 3⁴ × 10⁴ = (3 × 3 × 3 × 3) × (10 × 10 × 10 × 10) = 81 × 10000 = 810000
г) 5⁴ : 5² = (5 × 5 × 5 × 5) : (5 × 5) = 625 : 25 = 25
Ответ: а) 72; б) 72; в) 810000; г) 25