2. Estimating Products & Quotients Adding & Subtracting Decimals
Multiplying
Decimals &
Whole #s
Dividing
Decimals &
Whole #s
Vocabulary
Estimating Products & Quotients
Adding & Subtracting Decimals
$100
$100
$100
$100
$100
$200
$200
$200
$200
$200
$300
$300
$300
$300
$300
$400
$400
$400
$400
$400
Final
Jeopardy
$500
$500
$500
$500

3. C1 $100

4. C1? $100
What is 39.99?

5. C1 $200
19.86 – 4.94

6. C1 $200
What is 14.92?

7. C1 $300
Your current balance balance is $ After writing a check for $29.95, what is your new balance?

8. C1 $300
What is $207.85?

9. C1 $400
A hat costs $10.95 and a t-shirt costs $ How much change will you receive, if you pay for both with a $50 bill?

10. C1 $400
What is $24.85?

11. The final Jeopardy answer is:
C1 final
The final Jeopardy answer is:
A piggy bank containing only quarters has a mass of 850 grams when empty, and 7,822 grams when filled. If a quarter weighs 5.6 grams, estimate the amount of money inside the piggy bank?
Timer

12. C1 final
What is about $300?

13. C2 $100
Estimate 33.6 x 82.1

14. C2 $100
What is 30 x 80 = 2,400?

15. C2 $200
Is the estimation reasonable, yes or no? If no, provide a reasonable estimate.
7.8 x 1.1 x 4.2 = 50

16. C2 $200
What is NO, because
8 x 1 x 4 = 32?

17. C2 $300
Estimate 45.8 divided by 23.6

18. C2 $300
What is 46 divided by 23 = 2?

19. C2 $400
There are 25 yards of ribbon available, and each kid needs 1.75 yards of ribbon. Estimate the number of children that can participate in this craft activity.

20. What is 24 divided by 2 = 12 children?

21. C2 $500
Rewrite the following division problem using compatible numbers, so the quotient is a whole number.
divided by 71.54

22. C2 $500
What is 480 divided by 70 = 7?

23. C3 $100
7 x 0.012

24. C3 $100
What is .084?

25. C3 $200
.0198 x 75

26. C3 $200
What is 1,485?

27. C3 $300
2.4 x 3.48

28. C3 $300
What is 8.352?

29. C3 $400
5.04 x 3.2

30. C3 $400
What is ?

31. C3 $500
The grocery store is selling bananas for $.35 per pound. How much will you pay for 3.6 pounds of bananas?

32. C3 $500
What is $1.26?

33. C4 $100
118.5 divided by 5

34. C4 $100
What is 23.7?

35. C4 $200
divided by 31

36. C4 $200
What is 10.9?

37. C4 $300
.12 divided by .15

38. C4 $300
What is .8?

39. C4 $400
13.5 divided by .03

40. C4 $400
What is 450?

41. C4 $500
A necklace is being made with beads that are 1.25 centimeters in diameter each. The necklace is 30 centimeters long. How many beads are needed?

42. C4 $500
What is 24 beads?

43. C5 $100
Changing a number to a “close” number, in order to multiply or divide mentally.

44. What are compatible numbers?

45. The answer to a multiplication problem.

46. C5 $200
What is a product?

47. In a division problem, the number that does the dividing.
C5 $300
In a division problem, the number that does the dividing.

48. C5 $300
What is a divisor?

49. The answer to a division problem.
C5 $400
The answer to a division problem.

50. C5 $400
What is a quotient?

51. In a division problem, the number that is being divided.
C5 $500
In a division problem, the number that is being divided.

52. C5 $500
What is a dividend?

53. This Jeopardy game was created by
(Mr. Henry)
Good luck on your test!