Year 12s: what will be the first way you research your future options? >>

Rounding answers help

Now I was just wondering when a question says prove that this is the answer, say 7E10 and you get 6.8E10, then if you need to use this answer for another part of the question which number do you take? The one you found or the one that it gave you?

Thanks

Reply 1

teachercol

Use the one you found always.

Reply 2

bigmo7

teachercol

Use the one you found always.

Thank **** for that then! lol I was pondering this in the exam for ages and just went along with my gut feeling...I think I did anyway! :yes:

Reply 3

|| Mod Zed ||

Yea, I always use the previous answer I had. Otherwise, you could end up rounding up an answer that has already used a rounded up number, making a really inaccurate answer!

Reply 4

bigmo7

|| Mod Zed

Yea, I always use the previous answer I had. Otherwise, you could end up rounding up an answer that has already used a rounded up number, making a really inaccurate answer!