All we need to do to solve this problem is subtract the miles we need to get to work from the miles already traveled
Lets see what we know so far:
We know Kara needs to drive 45.55 miles to get to work.
We know she has already made 36.9 out of the 45.55 miles, so we need to figure out how many are left over.
To do this, we can subtract:
45.55
-36.9
When we subtract 49.55 from 36.9, we get 8.65.
We can make sure our answer is correct by adding the 8.65 to the 36.9, getting 45.55.
If Kara has already driven 36.9 miles, then she only needs to drive 8.65 more miles to reach the 45.55 miles, which is work!
Hope I could help :)
