Answer:
1,875cm^3 (I believe this is the answer, It's been a while since I've done this so feel free to correct me.)
Step-by-step explanation:
(20 x 5 x 20) - (5 x 5 x 5) =
20x5x20= 2,000
5x5x5= 125
2,000-125= 1,875