When the digit immediately to the right of your target (the place you're rounding to) is 5 or greater.
750 should be rounded up to 800. When rounding anything equal to or greater than 5 gets rounded up, while everything else gets rounded down. In this case the tens place value "5" is equal to or greater than 5, so the number rounds up.
89 if rounded to the nearest whole number
91.5 rounded to the nearest whole number is: 92. This is because the decimal value ".5" gets rounded up. Anything equal to or greater then 5 when rounding gets rounded up.
When the value 4,449 is rounded to two significant figures the number should be reported as 4,400
4 As the number after the decimal point is greater than 5 the number is rounded up
89.456 should be rounded to 89 (to the nearest whole number) but it should be rounded UP to 90.
12.6500...001 where you keep adding 0s. 12.65 should be rounded DOWN to 12.6, not up to 12.7.
750 should be rounded up to 800. When rounding anything equal to or greater than 5 gets rounded up, while everything else gets rounded down. In this case the tens place value "5" is equal to or greater than 5, so the number rounds up.
0.45 should be rounded down to 0.
3.5 can be rounded up to 4 or down to 3, most often it will be rounded up.
The nearest whole number is 9. Rounded up, it's 10.
12 if rounded to the nearest whole number
It is 41 if rounded up. Or 40 if rounded down.
89 if rounded to the nearest whole number
65 is rounded to the nearest whole number.
19.48 should be rounded up as it is only 0.02 from 19.5 i.e. 5 tenths And 19.41 should be rounded down, for example Various arguments for which way 19.5 should be rounded (as it halfway) ...
For cowboys, "rounded up" means "corralled." For mathematicians, "rounded up" means "estimated to a higher number that is shorter or easier to work with."