Perform the following operations. Express your answers with the correct number of significant figures (don’t forget to include your units in your final answer).

Question

a. 37.26 m + 2.7 m + 0.0015 m =

b. 256.3 mL + 2 mL + 137 mL + 10 mL =

c. 300. kPa x 274.57 mL / 547 kPa =

d. 346 mL x 200 K / 546.4 K =

This isn’t school work it is practice but I’m confused any help with be grateful thank you.

Answer 1

a and b are addition problems so the number of sig. figs. is dictated by the least number of digits after the decimal point. For a) your answer will have 1 place after the decimal (based on 2.7 m). In b), you answer will have no places after the decimal (based on 2 ml)

c and d are multiplication and division so the number of sig. figs. in the answer will be dictated by the least number of sig. figs. in the operation. For c) your answer will have 3 sig. figs because 300. and 547 both have 3. In d) your answer will have 1 sig. fig. because 200 K has only 1 sig. fig.