1. Comparing and Ordering Numbers How do we know which number is largest?

2. What is a line?

3. That’s right! It goes on forever. That’s why it has those cute little arrows on the ends!

4. Number Line A number line is a line. It goes on forever.

5. Number Line If that is true, then what is the first number on a number line?

6. Number Line Is it ok to start at 20? 20

7. Number Line What about 200? 200

8. Number Line What number comes after 200 on a number line? 200

9. Number Line What number comes after 200 on a number line? 200201202

10. Number Line What number comes before 200 on a number line? 200201202

11. Number Line What number comes before 200 on a number line? 200201202199198

12. AWESOME You know that a line goes on forever. You know that a number line is the same as a line! You know that a number line can begin with any number. You know that the numbers go in order. Do you know everything? Hum…

13. Number Line Could a different number come after 200? Hint: skip count! 200

14. Number Line 200220210180160 200300250150100 2004003001000

15. Number Line Let’s look at some numbers. Where would you put them on this line? 6000 7000 800050004000

16. Number Line 4500 6000 7000 800050004000 7001 6900 5900

17. Number Line 4500 6000 7000 800050004000 7001 6900 5900

18. Number Line 4500 6000 7000 800050004000 7001 6900 5400

19. Number Line 4500 6000 7000 800050004000 7001 6900 5400

20. Number Line 4500 6000 7000 800050004000 700169005400

22. 7001 Greatest to Least 4500 5400 6900

23. 7001 Greatest to Least 4500 5400 6900

24. 7001 Greatest to Least 4500 5400 6900

25. 7001 Greatest to Least 4500 5400 6900

26. 7001 Greatest to Least 4500 5400 6900

27. 7001 Greatest to Least 4500 5400 6900

28. That was easy…

29. Try these numbers: 40,342 40,328 40,302 Hint: Write the numbers, lining up the spaces.

30. Try these numbers: 40,342 40,328 40,302

31. Try these numbers: 40,342 40,328 40,302 Begin at the left and compare.

32. Try these numbers: 40,342 40,328 40,302 Keep Keep going until the numbers are different.

33. Try these numbers: 40,342 40,328 40,302 Keep Keep going until the numbers are different.

34. Try these numbers: 40,342 40,328 40,302 4 > 2 2 > 0

35. Try these numbers: 345,382 357,908 298,384 Work with your neighbors.

36. Try these numbers: 298,384 345,382 357,908 Correct order

37. What about these numbers: 8,398,384 8,395,382 8,387,908 8,485,342