Significant figures was an easy lesson but there are many places to get a question wrong.We have to remember these rules if we want to get a good grade on this test and on future tests because I am sure that this topic will come up in the future multiple times. The rules are:
1. Non-zero digits are always significant
This means that any number besides 0 is significant. ex- 8, 9, 28, 276 etc.
2. Any zeros between two significant digits are significant.
This means that if a zero falls between two non-zero numbers it is significant. ex. 2002, .200003, 1000000000004 etc. all the zeros in these numbers are significant.
3. A final zero or trailing zeros in the decimal portion ONLY are significant.
This means that zeros after a number that is a decimal are significant. ex. 1.2000000, 10.348500, 0.005000 etc.
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