1. Math Review Topics 5 and 6 CFA #3

2. There are 12 months in one year. If McKenna has been alive for 8 years, what would be a reasonable estimate for the number of months she has been alive?

3. Zachary read for 28 minutes a day, 4 days a week. What is the total number of minutes Zachary read in 5 weeks?

4. Use the distributive property (breaking apart) to find 5 X 14.

5. Use the distributive property to find 8 X 18.

6. Use the distributive property to find the product of 8 X 115.

7. Picasso’s sells 365 pizzas in one week. How many pizzas do they sell in 5 weeks?

8. Use partial products to calculate 35 X 4.

9. Use partial products to calculate 125 X 9.

10. What multiplication number sentence is shown in the array modeled below?

11. There are 15 boys in fourth grade chorus. There are twice as many girls as boys in chorus. How many girls are in fourth grade chorus?

12. William Street School has 4 parking lots with an average of 32 cars in each lot. What is a reasonable estimate for the number of cars at William Street School?

13. A race track is 7 miles long. Daniel drove around the track 27 times. He used estimation to find out how far he drove. First, he multiplied 30 X 7 = 210. What should he do next to determine the actual distance he drove?

14. What is another way to solve 63 + 63 + 63 + 63 + 63?

15. What is another way to solve 125 + 125 + 125 + 125?

16. Julie and her family drive to Florida 3 times each year to go to Disney World. The distance there and back is 2,390 miles. What is the total distance that they drive each year on their trips to Florida?

17. There are 9 classrooms in the C2 Commons. Each class brought in 39 items for the food drive. The Kids Helping Kids Club used estimation to figure out how many items the C2 Commons brought in. First they multiplied 40 X 9 = 360. What should they do next to determine the actual number of items that were brought in?

18. Rosie and Joey made Christmas cards. Rosie made 12 Christmas cards and Joey made 2 times as many cards as Rosie. How many cards did they make total?

19. Danny has 5 times as many baseball cards as Ken. Ken has 15 fewer baseball cards than Andrew. Andrew has 30 baseball cards. How many cards does Danny have?

20. Sally has 6 times as many songs on her I-Pod than Katie. Katie has 8 fewer songs than Sarah. Sarah has 32 songs. How many songs does Sally have?

21. What is 1,789 rounded to the nearest hundred? To the nearest thousand?

22. What is 8,498 rounded to the nearest hundred? To the nearest thousand?

23. Christopher is at the book fair and wants to buy a book and a bookmark for each of the 6 members of his family. He has $40 with him. If the books are $4 each and the bookmarks are $2 each will he have enough money to buy everything?