Question: In the calculation 12.11 + 0.3 + 1.234, how many significant figures should the answer have?
Options:
2
3
4
5
Correct Answer: 4
Solution:
The answer should have 2 decimal places, as 0.3 has the least precision.
In the calculation 12.11 + 0.3 + 1.234, how many significant figures should the
Practice Questions
Q1
In the calculation 12.11 + 0.3 + 1.234, how many significant figures should the answer have?
2
3
4
5
Questions & Step-by-Step Solutions
In the calculation 12.11 + 0.3 + 1.234, how many significant figures should the answer have?
Step 1: Identify the numbers in the calculation: 12.11, 0.3, and 1.234.
Step 2: Determine the number of decimal places for each number.
Step 3: 12.11 has 2 decimal places.
Step 4: 0.3 has 1 decimal place.
Step 5: 1.234 has 3 decimal places.
Step 6: Find the number with the least decimal places, which is 0.3 with 1 decimal place.
Step 7: The final answer should match the least number of decimal places from the numbers being added.
Significant Figures – Understanding how to determine the number of significant figures based on the precision of the numbers involved in the calculation.
Decimal Places in Addition – Recognizing that in addition, the result should be reported to the least number of decimal places of any number in the operation.
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