It is 200000.
There are 12,500 of them and I am not going to list them. One of them is 200000.
Two - all nonzero numbers are significant.
It is 200000.
There is one significant digit in the number 10, as written.
4. All numbers before the first digit don't count. All numbers after the first digit for decimals do count.all digits shown in scientific notation are significant.
Round the fourth digit: 1.001
200000
The number whose farthest right significant digit determines it. Whatever place that digit is in is the last significant digit in the sum. For example: 433 + 150 + 3.67 + 8000 = 8586.67, but in sig figs this is only 9000, as the thousands digit is the lowest digit that can be represented.
Accurately known digits along with first doubtful digit are called significant figures.
4 All of them are significant. Only zeros are potentially insignificant. And that's only when your numbers either start with zeros like 0.001 (1 significant digit 1) or end with zeros 13.0000 (2 significant digit, 13). Any zeros between non-zero numbers are significant.
Six. Zeroes are significant when they are between non-zero numbers, and this number both starts and ends with non-zero numbers. Therefore every digit is significant.