4th Grade: Unit 1B Whole Numbers Study Guide

1. Sort the numbers to show which are factors of 32 and which are not. Factors of 32 1 2 4 8 16 32 Not a Factor of 32 3 5 6 7 9 10 12 18 Sort the numbers to show which are factors of 40 and which are not. Factors of 40 1 2 4 5 8 10 20 40 Not a Factor of 40 3 6 7 9 12 24 30 Sort the numbers to show which are factors of 72 and which are not. Factors of 72 1 2 3 8 9 18 24 36 72 Not a Factor of 72 5 6 7 12 16 22 32 10 2. A set of numbers was created using the following pattern, "Start with 3, multiply by 2." What are the numbers that would be included in this set? 3, 5, 7, 9 3, 6, 3, 12 3, 6, 12, 24 3, 6, 9, 12 3. Sort the numbers to show which are prime and which are not. Prime 7 37 Composite 12 24 30 81 Tell how you determine if a number is prime or composite. 4. Which of the following numbers are multiples of 4? Select all that apply. 12 20 22 36 60 92 5. James and Eddie sell popcorn for their scout troop. The troop earns $10 for every $30 of popcorn sold. Complete the table to answer the following questions. Selling Price$ Troop Earnse 30 10 60 20 90 30 120 40 What is the rule for the table above? 6. Nancy has arranged ten shapes in the order as shown in the picture. If Nancy continues the pattern in the same way, what will be the 18th shape in the pattern? square heart plus moon 7. Jill counted the number of cookies in different trays at the bakery. 48, 16, 32, 72, 88, 24, 96Which of the following statements is TRUE about Jill’s data? all of the numbers are multiples of 5 all of the numbers are multiples of 6 all of the numbers are multiples of 7 all of the numbers are multiples of 8 8. A factor pair of 96 is 1 and 96. What is another factor pair of 96? 9 and 12 4 and 34 6 and 16 7 and 18 9. Mrs. Smith’s class rotates on a 3-day schedule to specials in the following order: P.E., art, and music.Josiah writes a numerical pattern to describe when Mrs. Smith’s class has music. 3, 6, 9, 12Mr. Lee’s class is on a 4-day schedule and goes to art, P.E., music, and Spanish, in exactly that order.What numerical pattern describes when Mr. Lee’s class has Spanish? Include four terms in your pattern. _, _, _, _ 10. Mrs. Smith’s class rotates on a 3-day schedule to specials in the following order: P.E., art, and music.Josiah writes a numerical pattern to describe when Mrs. Smith’s class has music. 3, 6, 9, 12Mr. Lee’s class is on a 4-day schedule and goes to art, P.E., music, and Spanish, in exactly that order.Should Mr. Lee's class go to Spanish on the 98th day of school? Explain your mathematical thinking. 11. Select all the numbers listed below that are composite. 9 4 5 7 10 11 12a. What are 5 multiples of 6? 12b. What are the factors of 18? 12c. What are the factors of 42? 13. List the first 6 multiples of 3 and 4 in the table below. How many multiplesdo these factors have in common? 3 4 Looking at the table above, how many multiples do these factors have in common? 1 2 3 4 5 6 14. The first number in a pattern is 3. The pattern follows the rule “add 15.” Whatis the fourth number in the pattern? 15. The first number in a pattern is 6. The pattern follows the rule “multiply by8.” What is the fourth number in the pattern?