1. Comparing and Rounding Decimals Christine Berg Edited V Hamilton

2. Decimal Models Equivalent Decimals Number Line Comparing Decimals

3. TenthHundredth Decimal Models

4. Decimals that represent the same value Example: 0.6 is equivalent to 0.60 0.6 = 0.60 Equivalent Decimals

5. Zeroes as last digit(s) of a number can be removed 0.6 = 0.60 Terminal Zeroes

6. 0.60.60 Equivalent Decimals

7. Comparing Decimals Step 1: Stack all the numbers being compared so that all the place values are lined up. 87.0413 87.09

8. Step 2: Add terminal zeros so there are the same number of decimal places 87.0413 87.0900 Comparing Decimals

9. Step 3: Underline the first number that is different in the numbers being compared 87.0413 87.0900

10. Step 4: Looking at the underlined digit, you can not tell which number is larger. It does not matter if there are additional numbers after the digit underlined! 87.0413 87.0900 THIS NUMBER IS LARGER! Comparing Decimals

11. Step 4: Order numbers depending on the directions given. Pay close attention to whether you’re supposed to order from least to greatest or greatest to least! Comparing Decimals

12. Which is greater: 0.6 or 0.58 ?

13. 0.60 0.58 0.6 > 0.58

14. Which is greater: 0.6 or 0.58 0.60.58

15. Step 1: Underline decimal place we are rounding Rounding Decimals

16. Step 2: Circle the number to the right of the underlined decimal place Rounding Decimals

17. Step 3: If circled digit is greater than or equal to 5, then round the underlined number up (add one) Rounding Decimals

18. Step 4: If circled digit is less than or equal to 4, leave the underlined number the same Rounding Decimals

19. Try these: 1)Round 1.05 to the nearest tenth 2) Round 0.123 to the nearest tenth Rounding Decimals

20. Answers: 1) 1.1 2) 0.12 Rounding Decimals

21. Describe what you learned today about either reading OR rounding decimals. In your Own Words