posted by Lisa .
Here is the problem I am working on and what I did so far:
First I did this:
Then I did this:
I thought my answer should be:
The answer key says the answer should be:
What did I do wrong?
you did nothing wrong, your answer is correct,
yours is just in a different order
3+4 = 4+3 or
+5 - 9 = -9 + 5 ?)