Question
Peter gave 16 of his buttons to Carl, 112 of his buttons to Luis and 13 of his buttons to Caden. He then had 30 buttons left. How many buttons had he at first?
4 m

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Peter gave 16 of his buttons to Carl, 112 of his buttons to Luis and 13 of his buttons to Caden. He then had 30 buttons left. How many buttons had he at first?