You would add them all and then decide them by how many numbers there are witch would be 3.
2.22. 3/6.46 =2.1533
2.14.
+2.10
———
6.46
Hmmmm not sure
Explanation: I took this test and got it correct
Answer:
-7+12 will also give u 5 with a positive sign
There are a few answers but an example of one could be 7^10 * 7^5
hope this helps
