Business Mathematics Brief 12th Edition by Stanley Salzman ,Gary Clendenen, Charles Miller

Exercise 20

Explain the three steps needed to round a number when the digit to the right of the place to which you are rounding is 5 or more. (See Objective.)
Round whole numbers. Business applications often require rounding numbers. For example, money amounts are often rounded to the nearest thousand or million dollars. Use these steps to round whole numbers.
Rounding Whole Numbers
Step 1 Locate the place to which the number is to be rounded. Draw a line under that place.
Step 2 If the first digit to the right of the underlined place is 5 or more, increase the digit in the place to which you are rounding by 1.
If the digit is 4 or less, do not change.
Step 3 Change all digits to the right of the underlined digit to zeros.