10th grade Chemistry Sig fig rules.

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what is Rule 1?

all Non zero’s are sig figs.

whats Rule two?

The sandwich rule. aka all zero’s in between two non Zero’s are considered sig figs.

what is rule 3?

When a number is less than zero, the zeros before and after the decimal point, but before any non Zero’s are insignificant

what is rule 4?

Zeros’s after the decimal point and after the sigfigs , or tailing Zero’s, are considered sig figs.

what is rule 5?

Trailing Zeros to the Right of the decimal points are significant. example 12.000= has 5 sig figs.