1. Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Chapter 1 Whole Numbers

2. 1-5-2 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Section 1.5 Dividing Whole Numbers

3. 1-5-3 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Division Definitions Division is the mathematical process of repeated subtraction of a value. The dividend is the number being divided. The divisor is the number by which the dividend is divided. The quotient is the result of dividing numbers. 12 ÷ 4 = 3 dividend divisor quotient

4. 1-5-4 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Division Properties

5. 1-5-5 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Division Properties

6. 1-5-6 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Example Divide using the division properties.

7. 1-5-7 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Solution

8. 1-5-8 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Solution

9. 1-5-9 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Solution

10. 1-5-10 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Solution

11. 1-5-11 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Solution

12. 1-5-12 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Dividing Whole Numbers Example:

13. 1-5-13 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Dividing Whole Numbers Example:

14. 1-5-14 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Dividing Whole Numbers Example:

15. 1-5-15 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Dividing Whole Numbers Example:

16. 1-5-16 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Dividing Whole Numbers Example:

17. 1-5-17 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Dividing Whole Numbers Example:

18. 1-5-18 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Dividing Whole Numbers Example:

19. 1-5-19 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Dividing Whole Numbers A remainder is a number that remains after division is complete. When there is a remainder, write the quotient followed by the letter R followed by the remainder.  Example: 22 ÷ 7 = 3 R 1 or

20. 1-5-20 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Dividing Whole Numbers Example: The answer is 129 R 8.

21. 1-5-21 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Dividing Whole Numbers Example: The answer is 129 R 8.

22. 1-5-22 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Dividing Whole Numbers Example: The answer is 129 R 8.

23. 1-5-23 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Dividing Whole Numbers Example: The answer is 129 R 8.

24. 1-5-24 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Dividing Whole Numbers Example: The answer is 129 R 8.

25. 1-5-25 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Dividing Whole Numbers Example: The answer is 129 R 8.

26. 1-5-26 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Dividing Whole Numbers Example: The answer is 129 R 8.

27. 1-5-27 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Applications Involving Division Key words and phrases that can indicate division:

28. 1-5-28 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Find an Average An average or arithmetic mean is the value obtained by dividing the sum of all the values in a data set by the number of values in the set.

29. 1-5-29 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Example A particular brand of frozen entrees offers selections with the following total number of calories: 320, 345, 360, and 280. Find the average number of calories per entree.

30. 1-5-30 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Solution Average = The average number of calories per entree is 325 calories.

31. 1-5-31 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Solution Average = The average number of calories per entree is 325 calories.

32. 1-5-32 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Solution Average = The average number of calories per entree is 325 calories.

33. 1-5-33 Copyright © 2008 Pearson Addison-Wesley. All rights reserved. Solution Average = The average number of calories per entree is 325 calories.