Significant Figures And Rounding

Zeros that are surrounded by significant figures are significant as well.

Leading zeros are not significant

Zeros at the end and right of the decimal point are significant

Trailing zeros are not significant

Zero at the end and right of the decimal point is significant, the zero after the 6 is surrounded by significant figures.

You are allowed 2 sig. figs, trailing zeros do not count but MUST be written or the decimal point will be in the wrong place.

Round to the nearest 1/100th because of .88

Each of the numbers had 3 sig. figs.

5100 has 2 sig. figs. so answer must be rounded to 2 sig. figs. You must include trailing zeros to get decimal point in right place.

27.0 has 3 sig. figs., you are allowed 3 in your answer. 7.567 rounds up to 7.57.

round to the nearest kg (ones column) due to the fact that 85 kg is listed to the nearest kg (ones)

158 is to the nearest g (ones column) so answer goes to the ones column.

round to nearest 1/10th

round to nearest 1/10th

leading zeros are not significant but must be written or the decimal point will be in the wrong place