Bobby wanted pancakes for breakfast. The recipe on the box makes 21 pancakes. While he ate 5 pancakes, his dog jumped up and was able to eat 7 before being caught. How many pancakes does Bobby have left?
Thoughts? Step-by-step reasoning:
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Bobby ate 5 pancakes and his dog ate 7 so 5 + 7 = 12. The recipe makes 21 pancakes and 12 were eaten so 21 - 12 = 9 pancakes were left.
Thus, the answer is 9.
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