Four - zeros between significant digits are significant.
Significant digits are digits that provide useful information, for instance 123 has 3 significant digits and 30010 has 4 significant digits. So basically zeros aren't significant unless they are between two other numbers. 0.1020 has only 4 significant digits. A+: 4
It has 4 significant figures.0.007080 has four significant digits.
2 significant figures.
Leading zeros are not significant digits, therefore 007 has one.
Three - all nonzero digits are significant.
Three. All nonzero digits are significant.
3 significant figures.
Three
4
It has two significant digits.
3 significant digits.
It has 3 significant digits.
4 significant digits.
Five. All nonzero digits are significant and zeros in between significant digits are significant.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.