What is the result of 5.00 - 2.1, considering significant figures?
Practice Questions
Q1
What is the result of 5.00 - 2.1, considering significant figures?
2.90
2.9
2.8
2.80
Questions & Step-by-Step Solutions
What is the result of 5.00 - 2.1, considering significant figures?
Step 1: Identify the numbers involved in the subtraction: 5.00 and 2.1.
Step 2: Determine the number of decimal places in each number. 5.00 has 2 decimal places, and 2.1 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, the least is 1 decimal place (from 2.1).
Step 4: Perform the subtraction: 5.00 - 2.1 = 2.90.
Step 5: Round the result (2.90) to 1 decimal place, which gives us 2.9.
