It is 100.
1000 is written with one significant figure, with only the 1 being a significant figure.
1150 to 1 significant figure is 1000
1000
1 significant figure.
The 2 is significant.
To express 961 to one significant figure, you round it to the nearest significant digit. The first significant digit in 961 is 9, and since the next digit (6) is 5 or greater, you round up. Therefore, 961 rounded to one significant figure is 1000.
2 of them.
there are 2 significant figures
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.
2 of them.
0.00245 rounded to one significant figure is 0.002. The first significant figure is '2,' and all digits to the right are replaced with zeros. The leading zeros before the '2' do not count as significant figures.
The significant figure for 20kg is 2, as the trailing zero(s) after the whole number are not considered significant in this case.