1. Chapter 2 Review

3. Using Mental Math, solve the following: 25,000 x 20 = ?

4. Using Mental Math, solve the following: 25,000 x 20 = 500,000

5. Using Mental Math, solve the following: 50 x 3,000 = ?

6. Using Mental Math, solve the following: 50 x 3,000 = 150,000

7. Complete the Pattern: 6 x 7 = 42 6 x 70 = 420 6 x 700 = _____ 6 x 7,000 = ______

8. Complete the Pattern: 6 x 7 = 42 6 x 70 = 420 6 x 700 = 4,200 6 x 7,000 = 42,000

9. Complete the Pattern: 8 x 3 = 24 80 x 30 = 2,400 800 x 300 = _____ 8,000 x 3,000 = ______

10. Complete the Pattern: 8 x 3 = 24 80 x 30 = 2,400 800 x 300 = 240,000 8,000 x 3,000 = 24,000,000

11. Estimate by Rounding: 1,119 x 87 = ________

12. Estimate by Rounding: 1,119 x 87 = ______ 1,000 x 90 = 90,000

13. Estimate by Rounding: 612 x 28 = ________

14. Estimate by Rounding: 612 x 28 = ______ 600 x 30 = 18,000

15. Estimate by using Expanded Form: 7 x 632 = ________

16. Estimate by using Expanded Form: 7 x 632 = ________ 7 x (600 + 30 + 2) =4,200 210 14 4,424

17. Estimate by using Expanded Form: 50 x 769 = ________

18. Estimate by using Expanded Form: 50 x 769 = ________ 50 x (700 + 60 + 9) = 35,000 3,000 450 38,450

19. Choose the Best Method. Then Multiply: 7,478 x 3 =

20. Choose the Best Method. Then Multiply: 7,478 x 3 = (P) 22,434

21. Choose the Best Method. Then Multiply: 366 x 42 =

22. Choose the Best Method. Then Multiply: 366 x 42 = (P) 15,372

23. Choose the Best Method. Then Multiply: 612 x 27 =

24. Choose the Best Method. Then Multiply: 612 x 27 = (P) 16,524

25. Choose the Best Method. Then Multiply: 2 x 100 x 330 =

26. Choose the Best Method. Then Multiply: 2 x 100 x 330 = (M) 66,000

27. Choose the Best Method. Then Multiply: 967 x 543 =

28. Choose the Best Method. Then Multiply: 967 x 543 = (P / C) 525,081

29. Choose the Best Method. Then Multiply: 234 x 876 =

30. Choose the Best Method. Then Multiply: 234 x 876 = (P / C) 204,984

31. Use the Distributive Property to solve the following (Show your work!) 5 x 210 = ?

32. Use the Distributive Property to solve the following (Show your work!) 5 x 210 = ? 5 x (200 + 10) (5 x 200) + (5 x 10) 1,000 + 50 1,050

33. Use the Distributive Property to solve the following (Show your work!) 4 x 425 = ?

34. Use the Distributive Property to solve the following (Show your work!) 4 x 425 = ? 4 x (400 + 25) (4 x 400) + (4 x 25) 1,600 + 100 1,700

35. What is the Best Estimate of the product? 88 x 69 = ?

36. What is the Best Estimate of the product? 88 x 69 = ? 90 x 70 = 6,300

37. What is the Best Estimate of the product? 6,045 x 11 = ?

38. What is the Best Estimate of the product? 6,045 x 11 = ? 6,000 x 10 = 60,000

39. The city is planning to buy 9 acres of land to expand the city’s park. Each acre of land will cost $555,555. What will it cost the city to buy all 9 acres?

40. The city is planning to buy 9 acres of land to expand the city’s park. Each acre of land will cost $555,555. What will it cost the city to buy all 9 acres? $555,555 x 9 = $4,999,995