__31 __43 ___124 ___129 Correct Answer: Adding and is the same as adding and __31 ___124 __43 ___129 ___124 ___129 because = and = . + = ___1213 ___1213 ___121 ___121 and = 1 which is more than 1 cup . __31 __43 Part B: How Anita know, without measuring, that cup of water and cup of oil together is less than 2 cups? __31 __43 Correct Answer: Both and are each less than 1, so sum must be less than 2 . __31 __43? Part C: How much less than 2 is the sum of and ___1224 ___121 ___1213, ___1224 ___1213 ___1211 Correct Answer: 2 = and 1 = so = . – Scoring Rubric Points Description The response achieves the following: The response demonstrates a complete understanding of using benchmark fractions and number sense to estimate mentally and assess the reasonableness of answers when solving a real-world problem involving fraction addition . Give 3 points for 3 answered correctly . 3 Response is correct and complete . Response shows application of a reasonable and relevant strategy . Mathematical ideas are expressed coherently through a clear, complete, logical, and fully developed response using words, calculations, and/or symbols as appropriate .
Correct Answer: Adding __31 and __43 is the same as adding ___124 and ___129 because __31 = ___124 and __43 = ___129 . ___124 + ___129 = ___1213 and ___1213 = 1 ___121 which is ___121 more than 1 cup . Part B: How Anita know, without measuring, that __31 cup of water and __43 cup of oil together is less than 2 cups? Correct Answer: Both __31 and __43 are each less than 1, so sum must be less than 2 . Part C: How much less than 2 is the sum of __31 and __43? Correct Answer: 2 = ___1224 and 1 ___121 = ___1213, so ___1224 – ___1213 = ___1211 . Scoring Rubric Points Description 3 The response achieves the following: The response demonstrates a complete understanding of using benchmark fractions and number sense to estimate mentally and assess the reasonableness of answers when solving a real-world problem involving fraction addition . Give 3 points for 3 answered correctly . Response is correct and complete . Response shows application of a reasonable and relevant strategy . Mathematical ideas are expressed coherently through a clear, complete, logical, and fully developed response using words, calculations, and/or symbols as appropriate .
Milestones%20Grade-5_Study_Guide_7.7.17.docx