5.6
2.99 rounded to three significant digits is 2.96 2.99 rounded to two significant digits is 3.0
222.008 mm rounded to four significant digits is 222.0 mm
0.037
1050 contains 4 significant digits and cannot be rounded to two significant figures without changing the value of the number.
1.0e3L
It has two significant digits.
No, it has 3 significant digits.
Any measurement may have two significant digits.
When using significant digits, the product has only the number of significant digits as the lowest number in the factors. "20" has two significant digits and "310" has three. Therefore, the product has to have two significant digits. 310 × 20 = 6200 6200 already has two significant digits.
1,000 to 2 s.f., or 1,000 (2 s.f.) or 1,000.
When rounding 5.05 to two significant figures, we first identify the two most significant digits, which are the 5 and the 0. The digit following the last significant digit is 5, which is equal to or greater than 5, so we round the last significant digit up by 1. Therefore, 5.05 rounded to two significant figures is 5.1.
To express 0.0728 to two significant figures, you focus on the first two non-zero digits, which are 7 and 2. This rounds the number to 0.073. Therefore, 0.0728 rounded to two significant figures is 0.073.