Question

How to round up the significant figures?

Answer 1

The last zero in a decimal is significant. 9 is the first non-zero digit, that means 9 is the first sig. fig. In 92.810576 the second figure 2 which is less than 5, so weround down the number. In 92.810576, 928 are the first three digits, the next figure1 which is less than 5, so we round down the number.