Question

the number of significant figures in a pure number 410

Answer 1

There are 2 significant figures in the number 410.

Here are a few rules and guidelines to help identify significant figures (especially zeros): 

1) All non zero digits are significant numbers. Example 41

2) All zero numbers to the left of a decimal point that are trailing are significant numbers.  Example 41.10 and 41.0 (note; the 0 in 41.01 is not a significant number as it is not trailing)

3) Zeros that come to the left of a decimal point, that come before a significant number are insignificant numbers. (Like the case we have with 410)

4) All zeros that appear between to significant numbers are significant. Example; 405

Answer 2

Answer:

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