You add the 2 numbers together and then divide by 2!
If you ever have to work out the average for a few numbers....you add them together and divide them by how many different numbers there are...
So for example:
The average of 15 and 31
15+31=46
46/2=23 is the average
the average of 2,8,9,11,16,15,23
2+8+9+11+16+15+23=84
84/7=12 is the average
If you ever have to work out the average for a few numbers....you add them together and divide them by how many different numbers there are...
So for example:
The average of 15 and 31
15+31=46
46/2=23 is the average
the average of 2,8,9,11,16,15,23
2+8+9+11+16+15+23=84
84/7=12 is the average