Question

How to find how many significant figures are in a number?

Answer 1

1. All non zero digits are significant 2.all zeros appearing between two non zero digits are significant. The trailing zeros in a no. Without a decimal point are insignificant eg. 2304000 has 4 significant. The trailing zeros in a no. Having a decimal point are significant. If a no. Is less than 1the zeros on the left side of the first non zero digit are non significant. For a measurement reported in scientific notation the base no. Is significant. The exact no. Appearing in the mathematical formulae has infinite no. Of signicant figures. For eg. A no. 4 has infinite significant no. That is 4.000000000000000000................. HOPE THIS HELPS U VERY MUCH DEAR..........