Concept explainers
A student was told that in order to check a solution to a word problem like the one in exercise 8, it is not enough to check that the solution found satisfies the equation set up, but rather that it is necessary to check the answer against the original problem. She would like to know why. How do you respond?
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Check out a sample textbook solutionChapter 8 Solutions
A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
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