400.
Rounded to one significant figure it becomes 20
1000 is written with one significant figure, with only the 1 being a significant figure.
When it's truncated to one significant figure . . . 20When it's rounded to one significant figure . . . . 30
5.63 converts to 6 as one significant figure.
It has 1 significant figure.
0.0042
3546 is an integer, not a fraction. However, you can express it as a ratio in the form 3546/1.
Rounded to one significant figure it becomes 20
1000 is written with one significant figure, with only the 1 being a significant figure.
0.3 has one significant figure.
1 significant figure. It can also be written as 4x10^6 (one sig fig)
It is 200 rounded to one significant figure
Rounded to one significant figure it becomes 40
When it's truncated to one significant figure . . . 20When it's rounded to one significant figure . . . . 30
37.753 rounded to one significant figure becomes 40
1,246 rounded to one significant figure is 1,000
100 is already rounded to one significant figure.