Dividing Whole Numbers 1.6 Dividing Whole Numbers

Division quotient divisor dividend The process of separating a quantity into equal parts is called division. quotient dividend divisor

Division Properties of 1 The quotient of any number, except 0, and that same number is 1. 6 1 5 7 = ÷

Division Properties of 1 The quotient of any number and 1 is that same number. 6 1 5 7 = ÷

Division Properties of 0 The quotient of 0 and any number (except 0) is 0. 6 7 = ÷ 5

Division Properties of 0 The quotient of any number and 0 is not a number. We say that 6 5 7 ÷ are undefined.

Helpful Hint Since division and multiplication are reverse operations, don’t forget that a division problem can be checked by multiplying.

Chapter 1 / Whole Numbers and Introduction to Algebra Division Words Here are some key words and phrases that indicate the operation of division. Key Words Examples Symbols divide divide 15 by 3 15  3 quotient quotient of 12 and 6 divided by 8 divided by 4 divided or shared equally $20 divided equally among five people 20  5

Chapter 1 / Whole Numbers and Introduction to Algebra Average How do you find an average? A student’s prealgebra grades at the end of the semester are: 90, 85, 95, 70, 80, 100, 98, 82, 90, 90. How do you find his average? Find the sum of the scores and then divide the sum by the number of scores. Sum = 880 Average = 880 ÷ 10 = 88