Notes

Rules for finding Significant Figures of a Number …

Rules for finding Significant Figures of a Number –
(1) All non-zero digits are significant, i.e. for 2489, significant figure is 4.
(2) All zeroes between two non-zero digits are significant, no matter, where the decimal point, i.e. for 240.02, significant figure is 5.
(3) All zeroes to the right of a decimal point and to the left of a non-zero digits are not significant, if the number is less than 1, i.e. for 0.0021, significant digits are 2.