Question

Which expression will produce an answer with the fewest significant figures?A. 23.51 * 56.2 B. 22.3 - 9.7C. 3460 - 1790D. 12.2 - 4.7

Answer 1

The option with the least significant figures is option D.

Step-by-step explanation:

To know which one of the given expressions has the lowest significant figures, we evaluate each expressions and compare to see which one has the most nonzero numbers in it. The one with the fewest nonzero numbers has the fewest significant figures.

A.

`\begin{gathered} 23.51*56.2 \\ =1321.262 \end{gathered}`

B.

`\begin{gathered} 22.3-9.7 \\ =12.6 \end{gathered}`

C.

`\begin{gathered} 3460-1790 \\ =1670 \end{gathered}`

D.

`\begin{gathered} 12.2-4.7 \\ =7.5 \end{gathered}`

Comparing all these, the option with the least significant figures is option D.