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1. New Jersey Center for Teaching and Learning Progressive Mathematics Initiative This material is made freely available at www.njctl.org and is intended for the non-commercial use of students and teachers. These materials may not be used for any commercial purpose without the written permission of the owners. NJCTL maintains its website for the convenience of teachers who wish to make their work available to other teachers, participate in a virtual professional learning community, and/or provide access to course materials to parents, students and others. Click to go to website: www.njctl.org

2. 3rd Grade Place Value 2012-09-24 www.njctl.org

3. Setting the PowerPoint View • Use Normal View for the Interactive Elements • To use the interactive elements in this presentation, do not select the Slide Show view. Instead, select Normal view and follow these steps to set the view as large as possible: • On the View menu, select Normal. • Close the Slides tab on the left. • In the upper right corner next to the Help button, click the ^ to minimize the ribbon at the top of the screen.  • On the View menu, confirm that Ruler is deselected. • On the View tab, click Fit to Window. • On the View tab, click Slide Master | Page Setup. Select On-screen Show (4:3) under Slide sized for and click Close Master View. • On the Slide Show menu, confirm that Resolution is set to 1024x768. • Use Slide Show View to Administer Assessment Items • To administer the numbered assessment items in this presentation, use the Slide Show view. (See Slide 13 for an example.)

4. Table of Contents Place Value click on the topic to go to that section Standard, Numeric and Expanded Forms Comparing Numbers Ordering Numbers Rounding Numbers Addition Subtraction

5. Place Value click to return to table of contents

6. Numbers, like 247, have three digits. Each digit has a different place value. The right digit is the ones place. It tells you that there are 7 ones. The middle digit is the tens place. It tells you that there are 4 sets of ten. The left digit is the hundreds place. It tells you that there are 2 sets of one hundred.

7. Hundreds Tens Ones Therefore, there are 2 sets of 100, plus 4 sets of 10, plus 7 ones in the number 247. (200+40+7=247) 2 4 7

8. How many blocks do you need? Hundreds Tens Ones 3 4 6

9. How many blocks do you need? Hundreds Tens Ones 1 6 2

10. How many blocks do you need? Hundreds Tens Ones 4 0 5

11. click for interactive web site

12. click for another interactive site

13. 1 How many tens are in the number 539? A 5 B 3 C 9

14. How many hundreds are in the number 724? 2 A 7 B 2 C 4

15. How many ones are in the number 359? 3 A 5 B 9 C 3

16. Which cave's length has a 1 in the tens place? 4 A Air Cave B Water Cave C Wind Cave

17. What would be the difference if the 2 was in the hundreds place? Hundreds Tens Ones What if the 5 was in the tens place? 1 2 5

18. Click on the image to be directed to a place value identification game.

19. Roll a die. Copy the numbers below in the order that they are rolled. _____ _____ _____ Circle the digit in the tens place. Cross out the digit in the hundreds place. Underline the digit in the ones place. Write the number that is 10 more than this number. _____ _____ _____ Write the number that is 100 less than this number. _____ _____ _____ erase and try several examples

20. 5 What is the value of the underlined digit? 921 A 21 B 920 C 20 D 2

21. 6 What is the value of the underlined digit? 493 A 490 B 4 C 400 D 493

22. 7 What number is 500 more than 325? A 375 B 330 C 352 D 825

23. 8 What number is missing? 500+?+8=528 A 2 B 20 C 200

24. What number is missing? 1000+?+40+9=1749 9 A 70 B 700 C 7

25. Standard, Numeric, Expanded Forms click to return to table of contents

26. You can write numbers in different ways. Standard form is writing a number out in digits. 674 Expanded form is writing a number out according to each digits place value. 600+70+4 Word form is writing a number out in words. six hundred seventy-four

27. Write the number that the base ten blocks represent in standard form. ___ ___ ___

28. Take the number 235 and write it in expanded form. ________+_____+___ 3 300 5 30 20 500 200 50

29. Write the number 235 in word form. __________ __________ __________-__________ five twenty fifty two three thirty two hundred five hundred three hundred

30. Fill in the blanks in the chart.

31. Click for web site practice.

32. Click for web site practice.

33. What is the number 200 + 50 + 4, written in standard form? 10 A two hundred fifty-four B 254 C 200504 D 200,504

34. 11 What is the number 108, written in expanded form? A 100 + 0 + 8 B one hundred eight C one hundred and eight D 1 + 0 + 8

35. What is the number 211, written in word form? 12 A two hundred ten-one B 200 + 10 + 1 C two hundred eleven D 2 + 1 + 1

36. What is the number four hundred two, written in standard form? 13 A 4,002 B 400 + 0 + 2 C 402 D four hundred and two

37. Which letter has the number 198 written properly in both word form and expanded form? 14 A one hundred ninety-eight, 1 + 9 + 8 B one hundred ninety-eight, 100 + 90 + 8 C one hundred ninety and eight, 100 + 90 + 8 D one hundred ninety and eight, 1 + 9 + 8

38. Comparing Numbers click to return to table of contents

39. There are two symbols we use to compare numbers. > (greater than) < (less than) One number goes on the left of the symbol and another number goes on the right of the symbol. The number on the left of the ">" shows the larger number. For example: 2 > 1 The number on the left of the "<" shows the smaller number. For example: 1 < 2

40. Remember, one number goes on the left of the symbol and another number goes on the right of the symbol. The number on the left of the ">" shows the larger number. For example: 2 > 1 This means that "2 is greater than 1" The number on the left of the "<" shows the smaller number. For example: 1 < 2 This means that "2 is less than 1"

41. Compare from left to right. 3 Hundreds is greater than 2 hundreds. 334 > 245

42. Use a place value chart Compare digits in the same place-value position from left to right. Hundreds Tens Ones 3 3 4 2 4 5 3 hundreds is greater than 2 hundreds. 334 > 245

43. Use a number line The numbers are in order from least to greatest. 245 334 300 340 330 240 250 334 is to the right of 245. 334 > 245

44. Click on the image to play a game that compares numbers.

45. Which number is the largest? 15 A 458 B 995 C 985 D 495

46. Which number has the most hundreds? 16 A 156 B 942 C 755 D 1665

47. Which number sentence is written properly? 17 A 169 > 197 B 687 < 129 C 657 < 546 D 983 > 981

48. Which number is greater than 845? 18 A 651 B 267 C 1,845 D 756

49. Which symbol should you use to complete this number sentence? 742 __ 582 19 A = > B C <

50. Which symbol should you use to complete this number sentence? 621 __ 628 20 A = > B C <