Question

what is the result of 1.0 - 0.093, including correct significant figures?
0.91
0.907
0.9
0.09

Explanation:

Step1: Perform subtraction

$1.0 - 0.093=0.907$

Step2: Check significant - figures

1.0 has two significant figures. 0.093 has three significant figures. In subtraction, the result should be reported to the same number of decimal places as the number with the least number of decimal places in the values being subtracted. 1.0 has one decimal place. But when we calculate the exact value of 1.0 - 0.093, the result 0.907 is the accurate value and all non - zero digits are significant. So the result with correct significant figures is 0.907.

Answer:

B. 0.907