He moved 6 floors up, then moved 8 floors down. So he is now 2 floors below ground level.
I hope this helps.
Hi!
The product of 67 and 9 is a little more than 600, because:

Hope this helps! Good luck!!
Answer:
You didn't include the following choices. If you would let me know in the comments, I'd be happy to help!
It'll go positive but for every number or goes half way