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There are 3 significant figures in this number.
There are 6 significant figures in this length.
2 of them.
4
111.009 mm rounded off to four significant figures is 111.0
2 significant figures.
There are 6 significant figures in this length.
There are 3 significant figures in this number.
3 significant figures.
It has 2 significant figures. However, the fact that it is given as 2300 mm and not as 230 cm suggests that it is, in fact significant to 4 figures.
4
2 of them.
4. The zeroes to the left are not significant, the zero to the right, is.
111.009 mm rounded off to four significant figures is 111.0
The least number of significant figures in any number of the problem determines the number of significant figures in the answer.
3 of them.
110.1mm