Admin Table of Contents
How many significant figures are there in 4000?
one significant figure
For example, the number 4,000 has one significant figure and should be written as the number 4 × 104. The number 450 has two significant figures and would be written in scientific notation as 4.5 × 102, whereas 450.0 has four significant figures and would be written as 4.500 × 102.
How many significant figures are there in 6000?
How Many Significant Figures?
| Number | Scientific Notation | Significant Figures |
|---|---|---|
| 6000 | 6.0×103 | 1 |
| 600 | 6.0×102 | 1 |
| 64.00 | 6.4×101 | 4 |
| 650 | 6.5×102 | 2 |
How many significant figures are there in 1000?
so 1000. is our four-significant-figure answer. (from rules 5 and 6, we see that in order for the trailing zeros to “count” as significant, they must be followed by a decimal. Writing just “1000” would give us only one significant figure.)
How many significant figures does 0.0100 have?
three significant figures
0.0100 contains three significant figures. Therefore, the decimal portion of the log answer (the mantissa) contains three significant figures. The preceding integer (the characteristic “2” in this case) does not count toward the significant figure total.
How many significant figures does 2.2 have?
two significant figures
The number 2.2 has two significant figures, while the number 2.2405 has five significant figures. How can we determine how many significant numbers a measurement has? 1. All nonzero digits are significant—457 cm (three significant figures); 0.25 g (two significant figures).
How many significant figures does 210 have?
Rounding
| Number of Significant Figures | Rounded Value | |
|---|---|---|
| 5 | 207.52 | 8 rounds the 1 up to 2 |
| 4 | 207.5 | 2 is dropped |
| 3 | 208 | 5 rounds the 7 up to 8 |
| 2 | 210 | 8 is replaced by a 0 and rounds the 0 up to 1 |
How many significant figures does 1200 have?
1200 has 2 significant figures. 0.025 has 2 significant figures.
How many significant figures does 0.020 have?
0.020 has two significant figures. The 2 is significant because all non-zero numbers are signficant. The second 0 is significant because all zeros at the end of a decimal are significant.