158529

We think the answer to number 1 is 310 pounds because 31 x 10 =310
We think the answer to number 2 is 323.50 pounds, we found this answer out by counting on and on and on.
We think the answer to number 3 was 1,073.741,824.cWe found this out by writing down 1+2+4+8+16+32 so on to figure out our answer that we think is correct we had to make sure that our calculations were correct and that was really hard because it took us a really long time, in total it took us about 20 minutes to 30 minutes to figure it out.

Now we are really proud that we have got our answer.