It cannot be converted to one significant digit as all three digits are significant.
1000 is written with one significant figure, with only the 1 being a significant figure.
Rounded to one significant figure it becomes 20
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.
1000 is written with one significant figure, with only the 1 being a significant figure.
Rounded to one significant figure it becomes 20
0.3 has one significant figure.
1 significant figure. It can also be written as 4x10^6 (one sig fig)
Rounded to one significant figure it becomes 40
It is 200 rounded to one significant figure
37.753 rounded to one significant figure becomes 40
When it's truncated to one significant figure . . . 20When it's rounded to one significant figure . . . . 30
Rounded to one significant figure it becomes 10
100 is already rounded to one significant figure.
1,246 rounded to one significant figure is 1,000
5.63 converts to 6 as one significant figure.