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Write 23.5 with two decimal digits. Then find .
Case context: Align the decimal points and use a placeholder zero.
Question: Write 23.5 with two decimal digits. Then find .
Sample answer: , so .
Key points:
- A placeholder zero does not change the value.
- 23.5 becomes 23.50.
- The sum is 64.88.
Rubric: Full credit for writing 23.50 and finding the sum 64.88. Partial credit for one correct result.
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OpenStax
Elementary Algebra @ OpenStax
Ch.1 Foundations - Elementary Algebra @ OpenStax
Algebra
Math
Prealgebra
Application in Bloom's Taxonomy
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Add:
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Write 23.5 with two decimal digits. Then find .