400.
0.40
400
400
400
Your three hundred ninety-five (395) rounded to the nearest ten (10) is four hundred (400). The rule is that a five (5) or higher number rounds up. Numbers four (4) and lower round down.
394 rounded would be 390, but when you add 1, 395 is generally rounded up to 400.
It is 300 when rounded to the nearest hundred
916 rounded to the nearest hundred is 900
5800
0
It is already rounded to the nearest hundred thousandths. Rounded to the nearest thousands would be 87.381.