What is the correct number of significant figures in the result of 5.67 - 0.2?
Practice Questions
1 question
Q1
What is the correct number of significant figures in the result of 5.67 - 0.2?
4
3
2
1
The result should be rounded to 3 significant figures, giving 5.5.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the correct number of significant figures in the result of 5.67 - 0.2?
Solution: The result should be rounded to 3 significant figures, giving 5.5.
Steps: 5
Step 1: Identify the numbers involved in the calculation: 5.67 and 0.2.
Step 2: Determine the number of decimal places in each number. 5.67 has 2 decimal places, and 0.2 has 1 decimal place.
Step 3: When subtracting, the result should be rounded to the least number of decimal places from the numbers involved. Here, that is 1 decimal place (from 0.2).
Step 4: Perform the subtraction: 5.67 - 0.2 = 5.47.
Step 5: Round the result (5.47) to 1 decimal place, which gives 5.5.
