It is then 2.64 when rounded to three significant figures
That depends on how many significant figures you are talking about.If three significant figures then 700 is the largest that rounds to 700.If four significant figures are to be rounded to three significant figures then 700.4If five significant figures are to be rounded to three significant figures then 700.49If six significant figures are to be rounded to three significant figures then 700.499etc.
10,074 rounded up to the three significant figures is 10,100
The number 10.989 rounded to 3 significant figures is 11.0
Unfortunately integers ending in 0s are ambiguous. If 40300 is rounded to the nearest unit, there are five significant figures, if 40300 is rounded to the nearest ten, there are four significant figures and if 40300 is rounded to the nearest hundred, there are three significant figures.
16.558 rounded to three significant figures is 16.6
0.00721004 rounded to three significant figures is 0.00721
44.981 rounded to three significant figures is 45.0
0.00858345 rounded to three significant figures is 0.00858
1,399.54 rounded to three significant figures is 1.40e3
79,966.92 rounded to three significant figures is 8.00e4
0.00721004 rounded into three significant figures is 0.00721
It is then 2.64 when rounded to three significant figures
That depends on how many significant figures you are talking about.If three significant figures then 700 is the largest that rounds to 700.If four significant figures are to be rounded to three significant figures then 700.4If five significant figures are to be rounded to three significant figures then 700.49If six significant figures are to be rounded to three significant figures then 700.499etc.
10,074 rounded up to the three significant figures is 10,100
9,682 rounded to three significant figures is 9,680.
It is 65.7 rounded to 3 significant figures