5
The answer to the equation 55 add 334 add 28 is 417.
The total of 45 + 55 + 5 = 105
3377
55
55
55
67
388
The way to count up by 55s is to start at 55 and add 55 more. So the answer would be 110. Add 55 to that and it would be 165. Adding 55 to that would be 210, then 265, and so on.
55
222335