1. Putting Numbers in Order From Greatest to Least From Least to Greatest

2. Greatest? Least? First we need to know the words. ZGreatest means biggest. ZLeast means smallest.

3. Look at Place Values ZLook at Tens and Ones ZOne digit numbers are smaller. 0-9 ZTwo digit numbers are bigger. 10 - 99

4. One Digit Numbers The numbers 0 - 9 are smaller. We only see them in the ones place. Tens ones 01234567890123456789

5. Two Digit Numbers The numbers 10 - 99 are bigger. We see them in the ones and tens places. TensOnes 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 0

6. Choose The Greatest Tensones 5 Tensones 35 or Tensones 79 Tensones 9 or

7. Choose the Least Tensones 73 Tensones 4 or Tensones 9 Tensones 26 or

8. Ordering 2-Digit Numbers First: Compare the tens place. The number with the bigger digit is the greatest number. Next: If the tens place is the same, compare the ones place. The bigger digit in the ones place is the greatest number. Tensones 7676 3333 Tensones 7777 3939

9. Lets Practice Put these numbers in order from least to greatest. (smallest to biggest) 39 76 5515 They can be put in order by looking at the tens place only. 15 39 55 76

10. Lets Try a Harder One 42383511 1.Look at the tens place. I know 11 is least because it has a 1 in the tens place. I know 42 is greatest because it has a 4 in the tens place. 11 35 38 42 2. Look at the ones place for 38 and 35. A 5 is smaller than an 8, so 35 comes before 38. Order these numbers from least to greatest.

11. More Practice… 33712692 Put these numbers in order from least to greatest. Look at tens, then look at ones. 27489443 68626569

12. More Practice… Put these numbers in order from greatest to least. Look at tens, then look at ones. 33712692 27489443 68626569

13. Lets Review Ordering Numbers 1. Know the words. ZGreatest means biggest. ZLeast means smallest. 2. Compare tens, then ones.