Looking at the number the 9 is in the millions place value. Underline this digit and circle the number immediately to the right of this number. This will tell you whether to add one to the underlined number or keep it the same number. With the 3 in the hundred thousands place, it is NOT 5 or greater and the underlined number remains the same. All other numbers to the right of the rounded place value become zeros including the circled digit. You would round this number to 489,000,000