As there is a 0 after the decimal point, the number rounds down, so 226 is the answer.
79.9 is approximate to:100 to the nearest hundred80 to the nearest ten80 to the nearest whole number/unit
The number 87980 is already rounded off to the nearest unit or whole number as no decimal values are given.
To the nearest whole number it rounds to 45469
62.83 rounded to the nearest whole unit = 63
Oh, dude, let's see... 59.8kg to the nearest whole unit would be 60kg. So, like, if you're carrying around a 59.8kg weight, you might as well just round it up to an even 60kg and save yourself the trouble of explaining that extra 0.2kg to people.
226.08 round to the nearest whole unit is 226
6,453,321.9648 rounded to the nearest unit or whole number is 6,453,322
4 is an integer and so already rounded to a whole unit so to round to the nearest tenth you do nothing.4 is an integer and so already rounded to a whole unit so to round to the nearest tenth you do nothing.4 is an integer and so already rounded to a whole unit so to round to the nearest tenth you do nothing.4 is an integer and so already rounded to a whole unit so to round to the nearest tenth you do nothing.
7.5 rounds to10 to the nearest ten8 to the nearest whole number/unit
9.3 rounds to:10 to the nearest ten9 to the nearest whole number/unit
7.5 rounds to:10 to the nearest ten8 to the nearest whole number/unit
4.1 is approximate to:0 to the nearest ten4 to the nearest whole number/unit
9.7 is approximate is10 to the nearest ten10 to the nearest whole number/unit
15.5 is approximate to0 to the nearest hundred20 to the nearest ten16 to the nearest whole number/unit
79.9 is approximate to:100 to the nearest hundred80 to the nearest ten80 to the nearest whole number/unit
29.1 is approximate to0 to the nearest hundred30 to the nearest ten29 to the nearest whole number/unit
46.4 is approximate to0 to the nearest hundred50 to the nearest ten46 to the nearest whole number/unit