Answer:
Option A.
Step-by-step explanation:
The given expression is
[tex]83 g-1.8 g[/tex]
We need to find the difference round to the less precise measurement.
Taking out the common factor.
[tex](83-1.80)g[/tex]
[tex]81.2g[/tex]
Precise measurement of given expression is 81.2g.
A measurement with more decimal places is more precise and vice versa.
Now, approx the answer to the the nearest whole measure.
[tex]81.2g\approx 81g[/tex]
The less precise measurement of given expression is 81g.
Therefore, the correct option is A.
