Write the rules for determining significant figures.

Explanation

(i)All non zero digits are significant.
(ii) All zeros between two non-zero digits are significant.
(iii) All zeros to the right of a non-zero digit but to the left of a decimal point are significant.
(iv) a. The number without a decimal point, the terminal or trailing zero(s)are not significant.
(b) All zeros are significant if they come from a measurement.
(v) If the number is less than 1, the zero (s) on the right of the decimal point but to left of the first non-zero digit are not sigjificant.
(vi) All zero to the right of a decimal point and to the right of non-zero digit are significant.
(vii) The number of significant figures does not depend on the system of units used.