231.57 has five significant figures/numbers. All the numbers in 231.57 are significant.
3 significant figures.
2310 has 3 significant figures.
Five
6
Four - all nonzero numbers are significant.
The figure 18.03 has a total of four significant numbers
Because 10.00400 is 10.004, this has five significant digits (numbers).
Three. All nonzero numbers are significant, and any zeros in between significant numbers are significant.
There are 5 significant figures.
1 significant figure.
5 significant figures.
Three significant figures.
Four significant figures.
Four significant figures.
There are 5 significant figures.
It has 4 significant figures
4 significant figures.