1. Comparing and Rounding Decimals
Christine Berg
Edited V Hamilton

2. Decimal Places 1000 = thousand 100 = hundred 10 = ten 1 = one
0.1 = tenth
0.01 = hundredth
= thousandth
= ten-thousandth

3. Read the number before the decimal point
Reading Decimals
Step 1:
Read the number before the decimal point

4. Read the decimal point as “and”
Reading Decimals
Step 2.
Read the decimal point as “and”

5. Read the number after the decimal place
Reading Decimals
Step 3:
Read the number after the decimal place

6. Follow the second number with the place value of the last digit Hint
Reading Decimals
Step 4:
Follow the second number with the place value of the last digit Hint

7. Draw and imaginary line underneath
Reading Decimals
Hint
.05
Draw and imaginary line underneath

8. Reading Decimals Hint .05 Place a 1 under the decimal
Place zeroes under each of the following numbers
. 05
100

9. Reading Decimals
. 05
100
is read as five hundredths

10. Comparing Decimals
Decimal Models
Equivalent Decimals
Number Line

11. Decimal Models
Tenth
Hundredth

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

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

14. Equivalent Decimals
0.6
0.60

15. Comparing Decimals Step 1:
Underline the first number that is different in the numbers being compared

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

17. Comparing Decimals
Step 3:
Remove the
decimal point

18. Order numbers depending on the directions given
Comparing Decimals
Step 4:
Order numbers depending on the directions given

19. Replace decimal point and remove terminal zeroes
Comparing Decimals
Step 5:
Replace decimal point and remove terminal zeroes

20. Which is greater:
0.6 or 0.58 ?

21. 0.60
0.58
0.6 > 0.58

22. Which is greater: 0.6 or 0.58
0.6
0.58

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

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

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

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

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

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

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