111.0
111.009 rounded to four significant digits is 111.0
Three of them.
1.0e3L
1,000 to 2 s.f., or 1,000 (2 s.f.) or 1,000.
Because March 14th or 3-14 are the first 3 digits of pi which are 3.14
111.009 rounded to four significant digits is 111.0
4.
Three of them.
222.008 mm rounded to four significant digits is 222.0 mm
111.0
111.0
1.0e3L
1,040 to 3 s.f., or 1,040 (3 s.f.) or 1,040.
1,000 to 2 s.f., or 1,000 (2 s.f.) or 1,000.
Because March 14th or 3-14 are the first 3 digits of pi which are 3.14
One. Although integers ending in 0 are ambiguous. If the number is known to be accurate to the nearest ten, for example, then there are 3 significant digits.
significant digits