400
It is: 350 rounded to the nearest ten
To round 352 to the nearest ten, you look at the digit in the tens place, which is 5. Since 5 is greater than or equal to 5, you round up. Therefore, 352 rounded to the nearest ten is 360.
It is 300 when rounded to the nearest hundred
916 rounded to the nearest hundred is 900
87.3809 is already rounded to the nearest hundred thousandths. 87.3809 rounded to the nearest thousand is 87.381.
0
0
0
678 is rounded nearest hundred is 700
300
800