a) 162 = 16 × 16 = 256
б) 53 = 5 × 5 × 5 = 125
в) 192 = 19 × 19 = 361
г) 303 = 30 × 30 × 30 = 27000
д) 502 = 50 × 50 = 2500
e) 1003 = 100 × 100 × 100 = 1000000