It is: 4200
The 19 will round down, so the answer is 500.
110
65.8
Expressed as a proper fraction in its simplest form 3-5 = 1/243 or one two hundred and forty-third. Expressed as a decimal, rounded to three significant figures, this is equal to 0.00412.
It is: 9.434 rounded
It is 39,600
203 rounded to the nearest 100 is 200.
33.0
686000
70
200
0.1
6.24
3
It is: 100.0 and not 99.9
2565 is only 35 less than 2600 but it is 65 more than 2500 so the nearest 100 is 2600.
25.9 is already expressed to the nearest tenth.