What is the result of adding 12.11 and 0.3 in terms of significant figures?

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Question: What is the result of adding 12.11 and 0.3 in terms of significant figures?

Options:

Correct Answer: 12.4

Solution:

The result should be rounded to one decimal place, giving 12.4.

What is the result of adding 12.11 and 0.3 in terms of significant figures?

What is the result of adding 12.11 and 0.3 in terms of significant figures?

Step 1: Identify the numbers to be added: 12.11 and 0.3.
Step 2: Determine the number of decimal places in each number.
Step 3: 12.11 has two decimal places, and 0.3 has one decimal place.
Step 4: When adding numbers, the result should be rounded to the least number of decimal places in the numbers being added.
Step 5: Since 0.3 has the least decimal places (one), the result should be rounded to one decimal place.
Step 6: Add the numbers: 12.11 + 0.3 = 12.41.
Step 7: Round 12.41 to one decimal place, which gives 12.4.

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