Jesse is playing with a pile of building blocks. He first builds a building with 80 building blocks. Then he builds a farmhouse with 123 building blocks. He adds a fenced-in area next to the farm made of 57 building blocks. If Jesse has 84 building blocks left, how many building blocks did he start with?
Thoughts? Step-by-step reasoning:
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Jesse built three structures out of building blocks, 80 + 123 + 57 = 260 building blocks. Jesse started with 260 + 84 leftover building blocks = 344 building blocks that Jesse had originally.
Thus, the answer is 344.
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