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
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
48 rounded o the nearest 10 is 50
0.7
543 rounded to the nearest tens place is 540.