To count significant figures, you count all the non-zero digits. You also count zeros which are between non-zero digits, as well as zeros which are after the decimal point, only if they appear to the right of non-zero digits.
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There are 4 significant figures. If a number has a decimal point with some zeroes, we count the total number of digits. Therefore, we count four significant figures.
You count the number of figures from left to right starting with the first number different from 0. Example: 205 has 3 significant figures 0.0000205 has 3 significant figures 0.000020500000 has 8 significant figures
One. Preceding zeros do not count.
One significant figure.And The that significant figure in that number is 6- 0 doesn't count as a significant figure.
4 significant figures (because this number has a decimal, start counting at the first non-zero digit from the left...so count 2300).