In this case with 234.896 the last digit, '6' determines the precision since in is the last non-zero digit.
3
Always the last number, so in this example the precision is to hundredths.
If a number is given to the true degree of precision, this is always determined by its last digit - in this case, 6.
None of them, you do that! You have given it to the precision of 3 decimal places or 6 significant figures however.
7
It has no precision, since there is no following number.
The "2".
7
7
8
3
Always the last number, so in this example the precision is to hundredths.
The farthest to the right.
The last digit, 2.
If a number is given to the true degree of precision, this is always determined by its last digit - in this case, 6.
None of them, you do that! You have given it to the precision of 3 decimal places or 6 significant figures however.
The one farthest to the right of the decimal point (3).