8468 rounded to 2 significant figures is 8500
It is 640.
72.8 round to two is 73.
2.6
22.1 to two significant figures = 22
0.00067 rounded to two significant figures = 0.00067
They are all significant figures. A significant figure is any non-zero digit or any embedded or trailing zero. Leading zeros are not significant.
0.036 The significant figures are indicated by the square brackets 0.0[35550], so we round this part of the figure.
72 is 72.2 rounded to two significant figures.
0.004560 to two significant figures results in: 0.0046
1.0
3800000
It is 640.
To round 296124 to two significant figures, we focus on the first two digits, which are 29. The next digit is 6, which is greater than 5, so we round up. Therefore, 296124 rounded to two significant figures is 300000.
Just cut off the numbers at the eight: 48,000,000
72.8 round to two is 73.
76.51 rounded to 1 significant figures would be 77
To round 644 to two significant figures, you look at the first two digits, which are 6 and 4. The next digit is 4, which is less than 5, so you do not round up. Therefore, 644 rounded to two significant figures is 640.