It would 320 because if you think about it:
10 • 32 = 320
Or if you would like something more easier:
32 + 32 + 32 + 32 + 32 + 32 + 32 + 32 + 32 + 32 = 320
All you would have to do is multiply 32 by 10 and you wold be able to get the answer of 320! Hope that helped! :)