Compute
Answer
3.15
The correct answer is 3.15 — Thus, .
Step-by-step solution
- Write the two numbers with the decimal points aligned.
- Add the digits in the ones place: .
- Add the digits in the tenths place: .
- Combine the sums to obtain .
- Thus, .
Common mistake: Not aligning decimal points before addition
Concept tested: Adding decimals
Published · How this solution was prepared and checked
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