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Posted on Oct 07, 2024

Suppose a student is presented with the task of filling in the blanks tot his problem: 12 + 7 = + 6 = .

Suppose a student is presented with the task of filling in the blanks tot his problem: 12 + 7 = ________ + 6 = ________. Some students will fill in the blanks with 19 and 25. Explain to a student why that would be incorrect

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