To calculate the sum of 32.567 and 135.0 with the appropriate number of significant figures, we need to consider the significant figures in each number.
First, let's determine the number of significant figures in each number:
- 32.567 has five significant figures.
- 135.0 has four significant figures.
Next, we add the numbers together: 32.567 + 135.0 = 167.567.
To round the result to the appropriate number of significant figures, we look at the number with the least number of significant figures in the original numbers, which in this case is four (from 135.0).
Therefore, the final answer, rounded to four significant figures, is 167.6.
In summary:
32.567 + 135.0 = 167.6