First you line them up like this....
34
+56
_____ Then you start by adding 4+6= 10 so you carry the 1 from 10 up on top of the 3 then you add the 5+3=8 then you have to add the 1 to that so it would be 5+3+1=9 so your answer would be 90
56 + 34 = 90 is an integer, not a fraction.
34 = 56
When you add 34 plus 4 plus 2, you get an answer of 40.
-763
90
That equals 199
56 added to 88 = 144
To get an average, add the numbers together and divide by how many numbers there are.... 33 + 34 + 78 + 56 = 201. 201 / 4 = 50.25
83.5
100
34
34 \times 56 = 1.904