Because 450 is nearer to zero than it is to 1,000.
550
1000-450 equal to = 550
You do nothing. 450 is already rounded to the nearest ten.
450
Because 450 is nearer to zero than it is to 1,000.
550
What is the nearest 100 of 450
450
As is. It is already rounded to the nearest tens place.
450
450
450.0
45/100 of 1000 = 1000*45/100 = 450
4000
1000-450 equal to = 550
You do nothing. 450 is already rounded to the nearest ten.