Question

use proper significant figures to solve the following: 16.2m + 5.008m + 13.48m 34.7m 38m 34.688 34.68

Explanation:

Step1: Add the values

$$16.2 + 5.008+13.48=34.688$$

Step2: Round based on significant figures for addition

For addition, the result should be rounded to the least number of decimal places among the addends. 16.2 has one decimal place, 5.008 has three, and 13.48 has two. So we round 34.688 to one decimal place.
$$34.688\approx34.7$$

Answer:

34.7m