Ответ:

Пошаговое объяснение:

1) 2×(48×5) = (2*5)*48 = 10*48 = 480

2) (4×6)×25 = (4*25)*6 = 100*6 = 600

3) (20×8)×5 = (20*5)*8 = 100*8 = 800

4) 5×(6×20) = (5*20)*6 = 100*6 = 600

5) (2×7)×5​ = (2*5)*7 = 10*7 = 70