Round 4120.759 to the nearest thousand.
We need to take our number and identify which digit is in the thousands place. The thousands place is four places to the left of the decimal point. We have the digit four in the thousands place. If we’re going to round to the nearest thousand, then we examine the digit to the right of the thousands place. Here we have a one in the hundreds place. We know that one is less than five. Therefore, we round our number down.
When we round down, the digit in the thousands place stays the same. Our four remains four and every digit to the right of the thousands place becomes a zero. Because after the decimal point there’re only zeros, we can simplify and not include the zeros after the decimal point.
4120.759 rounded to the nearest thousand equals 4000.