Question

how to find significant figures​

Answer 1

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The reliable digits plus the first uncertain digits are known as significant figures.

Here are some rules to find the significant numbers ,

• All non zero digits are significant.
• All the zeros between two non-zero digits are significant.
• Starting zeros are not significant.
• Trailing zeros in a non-decimal number are not significant.
• Trailing zeros in a decimal number are significant.
• In exponential notation the numerical portion gives the number of significant figures.

Answer 2

There are three rules on determining how many significant figures are in a number:

• Non-zero digits are always significant.
• Any zeros between two significant digits are significant.
• A final zero or trailing zeros in the decimal portion ONLY are significant.

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