3. 100 200 400 300 400 Estimation Rounding & Comparing Stories 300 200 400 200 100 500 100 Multiplication

4. Row 1, Col 1 32 * 28 256

5. 1,2 An average of about 120 monkeys eat poisonous bananas a day. About how many monkeys eat poisonous bananas in a week? in a month? 840 monkeys a week and about 3600 a month

6. 1,3 Which of the following is closest to the sum of 321 and 879 a) 902b) 1200c) 1500d) 27000 b) 1200

7. 1,4 After the holiday break, Sam had so much candy he didn’t know what to do. In the end, he decided to eat 23 pieces of candy a day. He did those for the entire month of February (it wasn’t a leap year.) How much candy did Sam eat that month? 644 Pieces of Candy

8. 2,1 Multiply and show your work: 28 * 18 504

9. 2,2 Which of the following is Closest to the product of 42 And 67? a) 110b) 2400 c) 2800 d) 28,000 c) 2800

10. 2,3 Would 600 be a reasonable estimation for the product of 28 and 18? Why or why not? Yes- with reasons listed

11. 2,4 Da Eun had a reading contest against a computer. Da Eun read 12 books a day for two weeks and 14 books a day for the other two weeks. The computer read through 13 books a day for the entire 4 weeks. Who won the contest? Tie- They both read 364 books

12. 3,1 How can knowing 100 * 50 help you solve the following problem? 104 * 51 Answers Vary

13. 3,2 What would a reasonable estimation be for 1240 * 17? Answers Vary

14. 3,3 Is the following sentence true or false? 9,389,977,395 < 100,000,001 False

15. 3,4 Sam and Matias decided to start a business selling tech-deck ramps. They started the business with 14 dollars. They then made 24 dollars a day for 49 straight days. How much money did they make? 1190 dollars

16. 4,1 Solve: 57 * 84 4788

17. 4,2 Add the following: 4.83 + 7.69 Subtract the following 13.86 – 5.32 12.52 and 8.54

18. 4,3 Round three hundred forty-two million, nine hundred eighty thousand, four hundred twenty one to the nearest million. 343,000,000

19. 4,4 Make and solve a multiplication problem story about the following individuals and numbers: Brynn, May, 66, 35 Problems vary- might include the product 2310

20. 5,1 How can 7 * 8 help you solve the problem 74 * 8? Answers Vary

21. 5,2 Nagissa and Paige bought a pet dragon for a class pet. They paid 13 RMB a week for 52 week. ABOUT how much did the pet dragon cost? About $500

22. 5,3 Which is greater? 1.2 times ten to Third power? Or 10 to the 4 th power? 10 to the 4 th power

23. 5,4 Complete the What’s My Rule Table: Rule ____________________________? INOUT 7420 5300 3______? ______?4800 ______?1200 Rule: Multiply 60, 180, 80, 20