Question

How would you write the number of significant figures present in `"106,356.7800 s"`?

Answer 1

Ten (10)

Explanation:

Because there is a decimal point in the number, you count every number. Even the final two zeros at the end of the number are significant. Here are the rules

• Every non-zero number is significant
• Zeros sandwiched between non-zero numbers are always significant
• If there is a decimal, the zeros between the decimal and the first non-zero number to the left are significant.
• If there is a decimal, all zeros to the right are significant
• If there is not a decimal, zeros at the right are not significant