you can use integer counters to model $-1 + 3$.

start with 1 negative counter.

which of these shows how to model $-1 + 3$?

add.

$-1 + 3 = $

Question

you can use integer counters to model $-1 + 3$.

start with 1 negative counter.

which of these shows how to model $-1 + 3$?

add.

$-1 + 3 = $

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 model for $-1 + 3$ $$ \begin{aligned} &\text{Start with } 1 \text{ negative counter: } \ominus \ &\text{Add } 3 \text{ positive counters: } \oplus \oplus \oplus \ &\text{Correct model: } 1 \text{ red counter with a minus sign and } 3 \text{ green counters with a plus sign} \end{aligned} $$ ## Calculate the sum $$ \begin{aligned} &-1 + 3 = 2 \end{aligned} $$ ## Question 1 The correct model is the first option (the box containing 1 red negative counter and 3 green positive counters). ## Question 2 $$-1 + 3 = 2$$ { "subject": "Mathematics", "question_type": "Multi-part", "knowledge_point": [ "Mathematics", "Algebra", "Integer Addition Models" ] }

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QUESTION IMAGE

Question

Explanation:

Identify the correct model for \(-1 + 3\)

Calculate the sum

Answer:

Question 1

Question 2