For doing significant figure you down count from the start the required amount, so 645533 would become 646000.
62 rounded to one significant figure is 60. 57 rounded to one significant figure is 60. 573 rounded to one significant figure is 600. 0.0573 rounded to one significant figure is 0.06. In each of these answers the 6 is the only significant figure.
Three.
their are 2 significant figueres in 1.0
1 significant figure.
It already is rounded to three significant figures.
8.87
It's already there.
There are three.
There are three of them there.
0.00860 has three significant figures.
62 rounded to one significant figure is 60. 57 rounded to one significant figure is 60. 573 rounded to one significant figure is 600. 0.0573 rounded to one significant figure is 0.06. In each of these answers the 6 is the only significant figure.
635 is already a three significant figure number.
0.0034088 in three significant figures would be 0.00341
9010
Three.
Three
Three.