1. Comparing and Ordering Decimals

2. Place Value 1,000 100 10 1 0.1 0.01 0.001 0.0001 Tens Thousands
Hundreds
Ones
Tenths
Hundredths
Thousandths
Ten-thousandths

3. EX: 123.456 What # is in the tenths place?
What # is in the ones place?
What # is in the tens place?

4. What Do I Mean Compare Decimals?
When we compare we use terms such as:
Less than <
Greater than >
Equal to =

5. EX:

6. 15, 14.95, 15.8, 15.01
Ordering Decimals:
First, line up the decimal points
15.00
14.95
15.80
15.01
Second, add zeroes if needed.
Finally, compare the decimals. Always start from the left!!
Answer:14.95, 15, 15.01, 15.8

7. Equivalent Decimals
Decimals that name the same number are called equivalent decimals.
0.60 and 0.6
Are these the same???

8. Examples: Order these numbers from greatest to least
35.06, 35.7, 35.5,
Order these numbers from least to greatest
0.018, 0.013, 0.28, 0.205, 0.035

9. Rounding Decimals Step 1: Underline decimal place we are rounding
Circle the number to the right of the underlined decimal place
Step 3:
If circled digit is greater than or equal to 5, then round the underlined number up (add one)
Step 4:
If circled digit is less than or equal to 4, leave the underlined number the same

10. 1)Round 1.05 to the nearest tenth
Try these:
1)Round 1.05 to the nearest tenth
2) Round to the nearest tenth
3. Round to the nearest whole number