200 Explanation: 2 is the one significant figure. The zeros are not significant. Round up because it is closer to 200 than to 100.
0.04
When expressing a number to one significant figure, you round the number to the nearest power of 10. In this case, 9862 to one significant figure would be 10,000. This is because the first digit from the left is 9, which is closer to 10 than 10000.
To express 218 to one significant figure, you would round it to the nearest ten. Since 218 is closer to 220 than 210, the rounded value would be 220. This is because the first significant figure is the hundreds place, which is 2 in this case. Rounding to one significant figure means keeping only one non-zero digit.
1000 is written with one significant figure, with only the 1 being a significant figure.
100 is already rounded to one significant figure.
200 Explanation: 2 is the one significant figure. The zeros are not significant. Round up because it is closer to 200 than to 100.
It then is 40000 to one significant figure
It is 10
0.4
0.04
0.04
You round to the nearest tens place. In this case, 738 rounded to one significant figure is 700.
1.00 x 10-4
It is then 30,000 rounded to 1 significant figure
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.
Oh, dude, one significant figure? That's like saying, "I only care about the first number, the rest can go chill." So, 827 to one significant figure is just 800. You're basically giving it a one-digit makeover and sending it out to impress all the other numbers.