1000 grams = 1 kilogram so 482 g = 482/1000 kg = 0.482 kg. Simple!
If you need to round to the hundreds, it means that the number must end with 00. In this case 482 379 can be rounded to 482 300 or 482 400. The nearest is 482400:482400-482379 = 21 units from de upper hundred482379-482300 = 79 units from de lower hundred
736 to the nearest 1000, is 1000.
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To the nearest ten, 980 To the nearest hundred, 1000