2. AT THE START OF CLASS -- You should HAVE OUT: 1. PENCIL and (or with) ERASER.1. PENCIL and (or with) ERASER. 2. LAST NIGHT’S HOMEWORK.2. LAST NIGHT’S HOMEWORK. 3. A sheet of Notebook or Scratch Paper3. A sheet of Notebook or Scratch Paper PLEASE BE QUIET AFTER THE BELL RINGS!PLEASE BE QUIET AFTER THE BELL RINGS!

3. Yesterday’s Homework Worksheet 2 – Powers of 10 and Multiplying Decimals: 1- 4Worksheet 2 – Powers of 10 and Multiplying Decimals: 1- 4 NO Calculators! Show Steps! For help and/or more practice see Pg. 676 of your textbook.

4. 9/16 Homework – Answers to Worksheet 2 358.0921. 358.092 0.0048722. 0.004872 2, 240.03. 2, 240.0 0.000224. 0.00022

5. Dividing Decimals  Goal  Goal 1 –You should review or learn how to divide decimals. Have out paper and pencil. NO Calculators!

6. Dividing Decimals Example 1 - Example 1 - 330.2  26 =. 26 ) 330.2 1 Rewrite problem in vertical format. Divide and bring up the decimal point. 26 70 2 52 182 7 182.

7. Dividing Decimals Example 2 - Example 2 - 4.2  10.5 = 0 10.5 ) 4.20 0 Rewrite problem in vertical format annex- ing zeros as needed. Divide and bring up the decimal point. 420 0 4. Clear decimal in divisor and move same number of places in dividend.

8. Dividing Decimals Example 3 - Example 3 - 33.02  2.6 =. 2.6 ) 33. 02 1 Rewrite problem in vertical format. Divide and bring up the decimal point. 26 70 2 52 182 7 182. Clear decimal in divisor and move same number of places in dividend.

9.  A)  A) 48.16  8 = ä  B)  B) 16.8  2.1 = ä  C)  C) 837  0.36 = ä  D)  D) 0.072  2.4 = ä Copy down all the problems, because we will click off of them soon. Dividing Decimals 6.02 6.02 8 2325 2325 0.03 0.03

10.  Goal  Goal 2 –You should review or learn how to round decimals answer to a given place if needed. Round Decimal Division Answers

11. Rounding Answers to Decimal Division 6.3  10.5 = 0.6 Now Round the quotient to the nearest whole number. Look one place to the right of the ones column. There is a 6 in the tenths column. Since it is equal to or more than than 5, the 0 is rounded up to 1. So, So, 6.3  10.5  1

12. Example 4 - Example 4 - 3.372  2.6 = Round to nearest tenth. 2.6 ) 3. 372 1 Rewrite problem in vertical format. Divide and bring up the decimal point. 77 2 52 252 9 234. Clear decimal in divisor and move same number of places in dividend. 26

13. Rounding Answers to Decimal Division So, So, 3.302  2.6 = 1.29... Round to nearest tenth Look one place to the right of the tenths column. There is a 9 in the hundredths column. Since it is equal to or is more than 5, the 2 is rounded up to 3. So, So, 3.302  2.6  1.3

14. Know Place Values 985.3548 985.3548 ___________________________ ___________________________ ones enTHs tenTHs decimal point THs hundredTHs THs thousandTHs THs ten-thousandTHs hundreds thousands ten-thousands tens 9 8 5. 3 5 4 8

15.  A)  A) 1.78  3 = Round to nearest tenth ä  B)  B) 78.65  8 = Round to nearest whole numberä Rounding Answers to Decimal Division 0.6 0.5933.. 0.6 9.83...10

16.  C)  C) 3.1  9.7 =  Round to one decimal place ä  D)  D) 78.61  8 =  Round to nearest hundredthä Rounding Answers to Decimal Division 0.319... 0.3 0.3 9.8262 9.83 9.83

17. 9/22 Class/Homework Worksheet 3 –Dividing Decimals: 1- 4 NO Calculators! Show Steps! For help and/or more practice see Pg. 676 of your textbook.