1. Liberal Arts Math

2. Objectives  By the end of this lesson, you  Can multiply decimal numbers without the use of a calculator

3. Video: Rules for Multiplying Decimals

4. Multiplying Decimals  Multiply the numbers as if they are ordinary numbers.  Count the total number of decimal places in the two factors.  The number of decimal places in the answer must equal the total number of decimal places in the two factors.  Add as many zeros as you need between the decimal and the answer to get the needed number of decimal places

5. EXAMPLES 5.6 x 2.4

6. EXAMPLES 5.6 x 2.4 224

7. EXAMPLES 5.6 x 2.4 224 112

8. EXAMPLES 5.6 x 2.4 224 112 13.44

9. EXAMPLES 5.6 x 2.4 224 112 13.44 2.8 x 0.15

10. EXAMPLES 5.6 x 2.4 224 112 13.44 2.8 x 0.15 140 28

11. EXAMPLES 5.6 x 2.4 224 112 13.44 2.8 x 0.15 140 28 0.420

12. EXAMPLES 5.6 x 2.4 224 112 13.44 2.8 x 0.15 140 28 0.420 0.33 x 0.17

13. EXAMPLES 5.6 x 2.4 224 112 13.44 2.8 x 0.15 140 28 0.420 0.33 x 0.17 231 33

14. EXAMPLES 5.6 x 2.4 224 112 13.44 2.8 x 0.15 140 28 0.420 0.33 x 0.17 231 33 0.0561

15. EXAMPLES 0.0018 x 0.0026

16. EXAMPLES 0.0018 x 0.0026 108 36 468

17. EXAMPLES 0.0018 x 0.0026 108 36 0.00000468

18. Video: Summary of Multiplying Decimals

19. Summary Review  Do you think you  Can multiply decimal numbers without the use of a calculator?

20. Liberal Arts Math