question 15

subtract.

$12.537 - 9.21$

3.327
1.1616
3.516
11.616

Question

question 15

subtract.

$12.537 - 9.21$

3.327
1.1616
3.516
11.616

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [], "new_concepts": [ "Decimal Subtraction" ], "current_concepts": [ "Decimal Subtraction", "Place Value" ] } ## Align decimal points and pad with zeros $$ \begin{array}{r@{\quad}l} 12.537 & \ - \phantom{0}9.210 & \text{(pad with zero)} \ \hline \end{array} $$ ## Subtract column by column from right to left $$ \begin{array}{r@{\quad}l} 12.537 & \ - \phantom{0}9.210 & \ \hline \phantom{0}3.327 & \end{array} $$

(A) 3.327

(B) 1.1616

(C) 3.516

(D) 11.616

{ "subject": "Mathematics", "question_type": "Multiple Choice", "knowledge_point": [ "Mathematics", "Algebra", "Decimal Subtraction" ] }

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QUESTION IMAGE

Question

Explanation:

Align decimal points and pad with zeros

Subtract column by column from right to left

Answer: