For example, if a report has a mass of an object as 11.6 grams, then it has three significant figures and the measurement has an uncertainty of +/- 0.1 of a gram.
(a report; has; a mass of an object) (the measurement; has; an uncertainty of +/- 0.1 of a gram)
a report the measurement
has has
a mass of an object
an uncertainty of +/- 0.1 of a gram