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Constructing and Critiquing Reasoning
Worksheet
Grade Level
Grade 3
3.142 Constructing and Critiquing Reasoning
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Critique the reasoning: A student says 5 groups of 8 is 13 because they added the two numbers. Which response best explains the mistake?
A
The answer is correct because the numbers are in the problem.
B
The mistake is only the handwriting, not the math.
C
The student should ignore the operation sign.
D
The student should multiply equal groups; 5 × 8 = 40.
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