200.
The decimal is important because without it, 200 has one significant digit.
* * * * *
Not correct! 200.601 rounds to 201.
how to round off these 32.426 to the numberof significant digits
Like this:
654321 --> 654000
65432.1 --> 65400
6543.21 --> 6540
654.321 --> 654
65.4321 --> 65.4
6.54321 --> 6.54
No rounding is necessary; it is already displayed in six significant figures.
2.4E5
200
31500
There are three rules that are used when rounding to a desired number of significant digits (figures): 1. All digits that are not zero, are significant 2. In a number that does not have a decimal point, all zeros between two non-zero digits are significant digits 3. In a number that has a decimal point, all zeros after the leftmost non-zero digit are significant Examples: 12345 rounded to 3 significant digits: 12300, or 1.23 x 104 12.345 rounded to 3 significant digits: 12.3, or 1.23 x 101 0.012345 rounded to 3 significant digits: 0.0123, or 1.23 x 10-2 0.012045 rounded to 3 significant digits: 0.0120, or 1.20 x 10-2 In the last example the zero after 2 is significant. That is the reason for keeping it in the result when rewriting it in powers of 10 notation.
1) Look at the two numbers you are multiplying 2) Find both their number of significant digits 3) Multiply both numbers together normally 4) Round your answer to the same number of significant digits of the least number in the first two factors 250 x 185 250 had 2 sig. digits------ 185 has 3 sig. digits 250 has the least number of sig. digits (2) Final answer has to have 2 sig. digits Normal answer: 46250 With rounding of sig. digits: 46000
3 significant digits because first zeros are just placeholders
Three. All nonzero digits are significant and zeros in between significant digits are always significant.
31500
It is 1570000 rounded to 3 significant figures
The first 3 significant digits of a number are the first 3 digits starting from the left ignoring any leading zeros. So 31456 = 31500 (3 significant digits) The 5 in the "56" rounds the 4 up.
0.0195. Note that leading zeros are non-significant.
Simply cut off the extra digits: 5.00
14.587020 rounded to four significant digits is 14.59
3 significant digits.
No, it has 3 significant digits.
It has 3 significant digits.
6,407,900
2.005
You can just round it off. For example, if your number is 8.38572998472654400131... that is equal to approximately 8.4 (if two significant digits is enough for your purposes) or 8.39 (if you prefer 3 significant digits).