question: Arnold, Madeline, Camden, and Sarah painted 56 easter eggs. Arnold and Madeline painted the same number of eggs. Camden and Sarah painted a total of 30 eggs, but Camden painted 12 more than Sarah. How many more eggs did Camden paint than Arnold?
answer: Arnold and Madeline painted 56 - 30 = <<56-30=26>>26 easter eggs.
  Arnold and Madeline each painted 26/2 = <<26/2=13>>13 easter eggs.
  Sarah painted (30 - 12)/2 = 18/2 = <<(30-12)/2=9>>9 easter eggs.
  Camden painted 9 + 12 = <<9+12=21>>21 easter eggs.
  Camden painted 21 - 13 = <<21-13=8>>8 eggs more than Arnold.
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