you can use integer counters to model (2 + (-8)).

start with 2 positive counters.

which of these shows how to model (2 + (-8))?

add.
(2 + (-8) =)

Question

you can use integer counters to model (2 + (-8)).

start with 2 positive counters.

which of these shows how to model (2 + (-8))?

add.
(2 + (-8) =)

Accepted Answer

{ "quality": "clear", "question_count": 2, "skills_matched": [ "step_cot", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Integer Addition Models" ], "new_concepts": [], "current_concepts": [ "Integer Addition Models", "Zero Pairs" ] } ## Identify the correct counter model $$ \begin{aligned} &\text{First model: } 2 \text{ positive counters } (+) \text{ and } 7 \text{ negative counters } (-) \ &\text{Second model: } 2 \text{ positive counters } (+) \text{ and } 8 \text{ negative counters } (-) \ &\text{Target expression: } 2 + (-8) \ &\text{Correct model: Second model} \end{aligned} $$ ## Calculate the sum $$ \begin{aligned} &2 + (-8) = 2 - 8 = -6 \end{aligned} $$ ## Question 1 The second model is correct because it shows 2 positive counters and 8 negative counters. ## Question 2 $2 + (-8) =$ -6 { "subject": "Mathematics", "question_type": "Multi-part", "knowledge_point": [ "Mathematics", "Algebra", "Integer Addition Models" ] }

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QUESTION IMAGE

Question

Explanation:

Identify the correct counter model

Calculate the sum

Answer:

Question 1

Question 2