The volume of the textbook calculated by the student written to 3 significant figures is 992cm³
According to this question, a student calculates the volume of his textbook and arrived at an answer of 991.880 cm³.
To round up this digit to 3 significantfigures, which means that only 3 significant numbers should appear in the answer.
To do this, the number after the third number is 8, which means we can round up the value of 1 to 2. Hence, the volume of the textbook calculated by the student is 992cm³ in 3 s.f.
