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which two expressions are equivalent to (5 \\times (5 \\times 2))? choo…

Question

which two expressions are equivalent to (5 \times (5 \times 2))?

choose 2 answers:

a ((5 \times 5) \times (5 \times 2))

b ((5 \times 5) \times 2)

c (25 \times 2)

Explanation:

Response

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"skills_matched": [
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"needs_drawing": false,
"concepts_used": [
"Basic Multiplication",
"Associative Property"
],
"new_concepts": [
"Equivalent Expressions"
],
"current_concepts": [
"Basic Multiplication",
"Associative Property",
"Equivalent Expressions"
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}
</pre_analysis>

<reasoning>

Evaluate the original expression

We calculate the value of the given expression:
\[
5 \times (5 \times 2)
\]
Using Basic Multiplication:
\[
5 \times 2 = 10
\]
Then:
\[
5 \times 10 = 50
\]

Apply the associative property

Using the Associative Property of multiplication, we can regroup the factors:
\[
5 \times (5 \times 2) = (5 \times 5) \times 2
\]
This matches option (B).

Simplify the regrouped expression

We simplify the grouped terms:
\[
(5 \times 5) \times 2 = 25 \times 2
\]
This matches option (C).

Verify the remaining option

We evaluate option (A):
\[
(5 \times 5) \times (5 \times 2) = 25 \times 10 = 250
\]
Since \(250
eq 50\), option (A) is incorrect.
</reasoning>

<answer>
<mcq-option>(A) \((5 \times 5) \times (5 \times 2)\)</mcq-option>
<mcq-correct>(B) \((5 \times 5) \times 2\)</mcq-correct>
<mcq-correct>(C) \(25 \times 2\)</mcq-correct>
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Multiple Choice",
"knowledge_point": [
"Mathematics",
"Algebra",
"Associative Property"
]
}
</post_analysis>

Answer:

<pre_analysis>
{
"quality": "clear",
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"step_cot",
"multiple_choice_formatter",
"explain_then_answer",
"tutor"
],
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"concepts_used": [
"Basic Multiplication",
"Associative Property"
],
"new_concepts": [
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],
"current_concepts": [
"Basic Multiplication",
"Associative Property",
"Equivalent Expressions"
]
}
</pre_analysis>

<reasoning>

Evaluate the original expression

We calculate the value of the given expression:
\[
5 \times (5 \times 2)
\]
Using Basic Multiplication:
\[
5 \times 2 = 10
\]
Then:
\[
5 \times 10 = 50
\]

Apply the associative property

Using the Associative Property of multiplication, we can regroup the factors:
\[
5 \times (5 \times 2) = (5 \times 5) \times 2
\]
This matches option (B).

Simplify the regrouped expression

We simplify the grouped terms:
\[
(5 \times 5) \times 2 = 25 \times 2
\]
This matches option (C).

Verify the remaining option

We evaluate option (A):
\[
(5 \times 5) \times (5 \times 2) = 25 \times 10 = 250
\]
Since \(250
eq 50\), option (A) is incorrect.
</reasoning>

<answer>
<mcq-option>(A) \((5 \times 5) \times (5 \times 2)\)</mcq-option>
<mcq-correct>(B) \((5 \times 5) \times 2\)</mcq-correct>
<mcq-correct>(C) \(25 \times 2\)</mcq-correct>
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Multiple Choice",
"knowledge_point": [
"Mathematics",
"Algebra",
"Associative Property"
]
}
</post_analysis>