[" Add "7.21,12.141" and "0.0028" and express "],[" e result to an appropriate number."]

Add 7.21, 12.141 and 0.0028 and express the result to an appropriate number of significant figures.

Add 7.21, 12.41 and 0.0028, and express the result the rsult to an appropriate number of significant figures.

Choose the correct option. The sum of 7.21, 12.141 and 0.0028 can be expressed upto appropriate number of significant figures as

Subtract 4.5xx10^(4)" from "7.9xx10^(5) and express the result to an appropriate number of significant figures.

Subtract 4.27153 from 6.807 and express the result to an appropriate number of significant figures.

Add 18.11, 12.0 and 2.021 and report the result in significant figures.

Solve the following and express the result to an appropriate number of significant figures. (i) Add 6.2g, 4.33g and 17.456g

Solve the following and express the result to an appropriate number of significant figures. (v) (2.51xx10^(-4)xx1.81xx10^(7))/(0.4463)