— Zhou Fang, can you finish your homework better with _______ time?
— I think I can.
A:few
B:fewer
C:little
D:less
100×7=____
130×2=____
200×4=____
210×3=____
300×2=____
420×2=____
9×30=____
2×10=____
8×20=____
6×60=____