Alright:

50C41.941.19
+
50C42.942.18
+
50C43.943.17
+
50C44.944.16
+
50C45.945.15
+
50C46.946.14
+
50C47.947.13
+
50C48.948.12
+
50C49.949.11
+
50C50.950.10

= egg

1 - egg = answer

I'm sure mathematics get much more difficult than this! Were you able to do the last problem? If so, post it: I bet I'll have no idea where to begin.