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Grade 4 Patterns, Functions and Algebra Answers Question 13 1 Plain balloons cost 12¢ each. Fancy balloons cost 16¢ each. a. What would be the total cost for 5 plain and 5 fancy balloons? Explain how you got your answer using pictures, numbers, or words. b. Mason bought 10 balloons that cost a total of $1.36. He bought at least one plain balloon and one fancy balloon. How many of each kind of balloon did Mason buy? Show or explain how you got your answer using pictures, numbers, or words. c. Is there a different way that Mason could have gotten 10 balloons for exactly $1.36? Explain why or why not using pictures, numbers, or words. Scoring Guide Score Description 4 The student demonstrates a thorough understanding of solving problems involving operations, including money, by accurately completing all components and effectively explaining procedures. 3 The student demonstrates a general understanding of solving problems involving operations, including money, by completing all components and explaining procedures. 2 The student demonstrates a basic understanding of solving problems involving operations, including money, by completing some components. 1 The student demonstrates a minimal understanding of solving problems involving operations, including money. 0 The response is incorrect or contains some correct work that is irrelevant to the skill or concept being measured. Blank No Response. 2 2002 MCAS Grade 4 Mathematics Question # 13 - Score Point 4 3 4 5 Open Response Question 17 Use the diagram below to answer question 17. 6 1 pair of scissors weighs the same as 4 erasers 3 pencils weighs the same as 1 eraser a. How many pairs of scissors weigh the SAME AS 12 erasers? Be sure to explain or show how you know you are right. 12 erasers weighs the same as ___ scissors b. Do three erasers weigh the SAME AS six pencils? Explain or show how you know. c. How many pencils weigh the SAME AS one pair of scissors? Use pictures, numbers, or words to show how you know. d. Write ONE number sentence to show how many pencils AND erasers weigh the SAME AS two pairs of scissors. Scoring Guide Score Description 4 The response demonstrates a thorough understanding of solving problems using number sentences and mathematical relationships and effectively communicates reasoning. 3 The response demonstrates a general understanding of solving problems using number sentences and mathematical relationships and communicates reasoning. 2 The response demonstrates a partial understanding of solving problems using number sentences and mathematical relationships. 1 The response demonstrates a minimal understanding of solving problems using number sentences and mathematical relationships. 0 The response is incorrect or contains some correct work that is irrelevant to the skill or concept being measured. Blank No response. 7 8 9 Answer: B, 3 Answer: C, Library 10 Answer: A Part A: 5 goes into the center circle, and 3 + 5 = 8 for the top left circle; 5 + 7 = 12 for the top right circle. Part B: The bottom row of numbers are multiplied together to make the next number above it. 11 ANSWER: C 12 13 ANSWER: 14 ANSWER: C ANSWER: C ANSWER: D 15 16 17 18 19 20 21 22 23