It is 0.01
round to the first significant figure
200
It is then 30,000 rounded to 1 significant figure
Rounded to 1 significant figure it is 0.4
0.00009893 to 1 significant figure = 0.0001
It's already there.
7000
2,000,000
9000
0.1
10000000
0.9
12
800
100
200
To round 0.874 to 1 significant figure, we focus on the first digit, which is 8. The next digit (7) is greater than 5, so we round up. Therefore, 0.874 rounded to 1 significant figure is 0.9.