ACTIVITY #4. Find the sum of each of the following
1.3 + 8 =
2. 4 + (-2) =
3.-10 4 15 =
4.7 + (-10) =
5. 15 + 9 =
6-9 + (-10) =
7. 20 * 7 =
8. 5 + 12 =
9. 13+ (-6)=
10,4 +0=​