will ratehonestly A fourth grade student devised the following subtractionalgori

Question

will ratehonestly A fourth grade student devised the following subtractionalgorithim for subtracting 84-27. 4 minus 7 equals negative3. 84 -27 - 3 80 minus twenty equal 60 84 -20 60 60 plus negative 3 equals     84 -27 -3 60 57 Thus the answer is 57 what is your response as ateacher. will ratehonestly A fourth grade student devised the following subtractionalgorithim for subtracting 84-27. 4 minus 7 equals negative3. 84 -27 - 3 80 minus twenty equal 60 84 -20 60 60 plus negative 3 equals     84 -27 -3 60 57 Thus the answer is 57 what is your response as ateacher. 57 Thus the answer is 57 what is your response as ateacher.

Explanation / Answer

Well if you try testing the student's algorithm with differentvariables, you still arrive at the same answer you would have ifyou subtracted regularly.

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