Wood Model Airplane

Is this math answer acceptable?

Here's the math question: Christine is carving a model airplane from a piece of wood. It is 5 yards long. Estimate how many models can she carve if each model is 17 inches long. Justify your reasoning.

My answer: Christine can carve about 11 models. Here is what I wrote to justify my answer: The piece of wood that Christine is carving from is 5 yards long, which is equal to 180 inches. If she were to carve each model to be 17 inches long, then she would end up with about 11 airplane models. I know this because I divided 180 by 17 to find the number of models Christine would get from a 5 yard long piece of wood, and got 10.58. 10.58 is closer to 11 than 10, so she would get about 11 models.

All is good except she can only get 10 models. You don't round to 11 even though it is closer since there is not enough material to make 11. 10 is the answer, but the rest of the reasoning is good.

Hand Carved Wood Model Airplanes at Gift of Wings

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