Question

How many significant digits this number have
300. 100km

Answer 1

Answer:

6 bcz there are sign of unit when unit is there all zero are counted

Answer 2

Answer:

6

Explanation:

1.Non-zero digits are always significant

2. Any zeros between two significant digits are significant

3. A final zero or trailing zeros in the decimal portion ONLY are significant

Example:  .500 or .632000 the zeros are significant

                 .006  or .000968 the zeros are NOT significant