Explicație pas cu pas:
a) 3852 × 60 = 231120
b) 250025 - 4 = 250021
c) 50 - 16×50 × 4005 = 50 × ( 1- 16×4005) = 50 × ( 1 - 64080) = 50 × ( - 64079) = -3203950
d) 24580× ( 14 + 1) = 24580 × 15 = 368700
e) 24 × ( 10359+1) = 24× 10360 = 248640
f) 65809 × ( 12 - 2) = 65809 × 10 = 658090
