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{ "quality": "blurry", "question_count": 2, "skills_matched": [ "step_cot", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Negative Integers" ], "new_concepts": [ "Integer Addition Models", "Zero Pairs" ], "current_concepts": [ "Negative Integers", "Integer Addition Models", "Zero Pairs" ] } ## Identify the correct model for $6 + (-2)$ $$ \begin{aligned} &\text{Start with } 6 \text{ positive counters (green with } + \text{)}.\ &\text{Add } 2 \text{ negative counters (orange with } - \text{)}.\ &\text{Left model: } 6 \text{ positive counters and } 2 \text{ negative counters.}\ &\text{Right model: } 6 \text{ positive counters and } 1 \text{ negative counter.}\ &\text{Correct model: Left model} \end{aligned} $$ ## Calculate the sum $$ 6 + (-2) = 6 - 2 = 4 $$ ## Question 1 The correct model is the **left model** (which shows 6 positive green counters and 2 negative orange counters). ## Question 2 $6 + (-2) =$ 4 { "subject": "Mathematics", "question_type": "Multi-part", "knowledge_point": [ "Mathematics", "Algebra", "Integer Addition Models" ] }

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Explanation:

Identify the correct model for \(6 + (-2)\)

Calculate the sum

Answer:

Question 1

Question 2