CCSS.Math.Content.5.NF.A.2 - Solve word problems involving addition and subtraction of fractions referring to the same whole, including cases of unlike denominators, e.g., by using visual fraction models or equations to represent the problem. Use benchmark fractions and number sense of fractions to estimate mentally and assess the reasonableness of answers. For example, recognize an incorrect result 2/5 + 1/2 = 3/7, by observing that 3/7 < 1/2.

 
Authors: National Governors Association Center for Best Practices, Council of Chief State School Officers

Title: CCSS.Math.Content.5.NF.A.2 Solve Word Problems Involving Addition And Subtraction... Number and Operations--Fractions - 5th Grade Mathematics Common Core State Standards

Publisher: National Governors Association Center for Best Practices, Council of Chief State School Officers, Washington D.C.

Copyright Date: 2010

(Page last edited 10/08/2017)

1. Add Fractions - Index of six activities
2. Add Fractions, Subtract Fractions? - Good IWB activity. To see the answer, pass your cursor over the colored block.
3. Adding and Subtracting Fractions - Four page step by step lesson including examples and problems
4. Adding and Subtracting Fractions and Mixed Numbers - Online explanation with large number of examples
5. Adding and Subtracting Fractions Game - Interactive board game for practicing the skill of adding and subtracting fractions
6. Adding and Subtracting Fractions with Like Denominators - Five multiple-choice questions
7. Adding and Subtracting Fractions with Unlike Denominators - Five multiple-choice questions
8. Adding Fractions - Six activities available from Visualizing Fractions
9. Adding Fractions Worksheet - Same denominator, no simplifying
10. Adding Fractions Worksheet - Different denominator, simplifying required
11. Adding Fractions, Like Denominators - This page includes an explanation, a practice area, and a quiz designed as a game.
12. An interactive Game for learning how to Adding and Subtracting Fractions - Interactive game; use the keyboard to type in the number of the fraction
13. Compare Fractions - Two activities available from Visualizing Fractions
14. Comparing Fractions - Summary of ways of comparing fractions [Skillwise factsheet]
15. Divide Fractions - Four activities available from Visualizing Fractions
16. Estimate Fractional Distance - Watch Grammy carefully and estimate the fractional distance that represents where she jumped over the hedge.
17. Estimating Decimal Sums and Differences - Five multiple-choice questions
18. Estimating Sums and Differences of Fractions - Five multiple-choice questions
19. Find Thirteen Ways of Expressing Half - After Dr. Marbles illustrate ways to express one half you look for the other ways.
20. Fraction Models - This tool, an interactive applet, explores several representations for fractions using adjustable numerators and denominators. You can see decimal and percent equivalents, as well as a model that represents the fraction are available for upper grades.
21. Fraction Practice - All operations, mixed practice - (explanations given for wrong answers)
22. Fractions: Rectangle Multiplication - Interactive site from the National Library of Virtual Manipulatives
23. Identify Fractions - Six activities available from Visualizing Fractions
24. Maggie's Farm - Keep up with how many apples are sold and how much money was made
25. Old Egyptian Math Cats Fractions - Add fractions like a true Old Egyptian Math Cat!
26. Operations with Fractions - Add, subtract, multiply, and divide fractions and mixed numbers: word problems
27. Operations with Fractions - Divide fractions and mixed numbers: word problems
28. Operations with Fractions - Divide mixed numbers
29. Operations with Fractions - Divide fractions
30. Operations with Fractions - Multiply fractions and mixed numbers: word problems
31. Operations with Fractions - Multiply mixed numbers
32. Operations with Fractions - Multiply fractions and whole numbers
33. Operations with Fractions - Multiply fractions
34. Operations with Fractions - Inequalities with addition and subtraction of fractions and mixed numbers
35. Operations with Fractions - Add and subtract mixed numbers: word problems
36. Operations with Fractions - Add and subtract mixed numbers
37. Operations with Fractions - Add and subtract fractions: word problems
38. Operations with Fractions - Add and subtract fractions
39. Organize the Wrenches - Wrenches of various sizes must be placed in order from smallest to largest
40. Practice with Order of Operations - Ten practice problems [answers available] [from the Wayback Machine Internet Archive.]
41. Rename Fractions - Eight activities available from Visualizing Fractions
42. Rounding - Discover how rounding is a process which produces another number that is close to the original number. Learn how to round numbers up or down to the nearest rounding number. Work through the lesson, experiment with the interactive figure and then answer ten questions. [caution: do not submit until you have selected answers to all of the questions]
43. Rounding Fractions and Mixed Numbers - Five multiple-choice questions
44. Simple Fractions - An instructional site that reviews terms, factoring, reducing, addition and subtraction of fractions
45. Solving addition and subtraction equations - Try a workout of 10 problems. If you get at least 8 correct on your first attempt, then you're ready to move on. If not, review "In Depth" and try again.
46. Solving Decimal Word Problems - Ten examples and five practice problems
47. Subtract Fractions - Index of five activities
48. Subtracting Fractions - Five activities available from Visualizing Fractions