0
543 rounded to the nearest tens place is 540.
2
Although O is round already, letters can't be rounded mathematically. I suppose you could write 0.00, but zero is zero.
60
157 rounded to the nearest thousand is o
2.85
o.44 rounded to the nearest tenth is 0.4.
410 rounded to the nearest hundred is 400
0
81.3
2601000
800
73.
22000
Zero but to the nearest 100 it is 300
48 rounded o the nearest 10 is 50