[Answer] Why are leading zeros to the left of non-zero digits not significant? (Site 2)

Answer: Because there are placeholders.

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Why are leading zeros to the left of non-zero digits not significant? (Site 2) Significant figures rules: Specifically the rules for identifying significant figures when writing or interpreting numbers are as follows: * All non-zero digits are considered significant . For example 91 has two significant figures (9 and 1) wh... Why are leading zeros not significant? - Quora Significant figures - Wikipedia Leading zero - Wikipedia error analysis - Why aren't the 0's significant figures in 0.002 ... Zeros between two non-zero digits ARE significant Leading zeros are NOT significant Trailing zeros to the right of the decimal ARE significant Trailing zeros in a whole number with the decimal shown ARE significant . Rules: Addition and Subtraction 1. Add or subtract the numbers on your calculator (or by hand). 2 . Round the result to the same number of decimal places as the least precise value. Zeros to the left of the significant figures (leading zeros) are not significant. For example 0.00052 has two significant figures: 5 and 2. Zeros to the right of the non-zero digits (trailing zeros) are significant if they are to the right of the decimal point as these are only necessary to indicate precision . However trailing zeros in the ones place or higher may or may not be significant depending on the precision of … The zero to the left of the decimal place in 20.00cm is also significant since it now falls between significant digits. If the last significant digit is zero and to the left of the decimal place we have a problem. Our standard way of writing numbers has no real way of differentiating between 4500 to 2 significant digits and 4500 to 3 or 4 significant digits. Let's go back to and look at the earlier example … Why are leading ze...

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