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Mathematics, 03.07.2019 04:00 historygal
Constructed response 1: a student thinks that the sum of 4.3 and 8.4 is 12.7 because 4 + 8 = 12 and 3 + 4 = 7. the student then adds 3.6 and 2.7 and gets 5.13 because 3 + 2 = 5 and 6 + 7 = 13. identify the mistake in the student’s procedure and explain why this procedure won’t always work.
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Constructed response 1: a student thinks that the sum of 4.3 and 8.4 is 12.7 because 4 + 8 = 12 and...
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