Question

Use the rules of significant figures to answer the following question.67.31 - 8.6 + 212.198A. 270.908B. 271C. 270.9D. 270

Answer 1

67.31

+ 212.198

279.408

279.408

- 8.6

270.808

The result must have only 2 significant figures because 8.6 is the number with less significant figures and has two.

Then, the result = letter D. 270