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MCC.5.NF.1, MCC.5.NF.2. Standards MCC.5.NF.1 Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions.

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Presentation on theme: "MCC.5.NF.1, MCC.5.NF.2. Standards MCC.5.NF.1 Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions."— Presentation transcript:

1 MCC.5.NF.1, MCC.5.NF.2

2 Standards MCC.5.NF.1 Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators. For example, 2/3 + 5/4 = 8/12 + 15/12 = 23/12. (In general, a/b + c/d = (ad + bc)/bd.) MCC.5.NF.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.

3 Directions Split class into 5 teams (or less). Each team must solve the given problem. After time is called, every team leader should hold their answer so it can be checked. Teacher is to click on the yellow square for answer to appear. The teams that got the correct answer choose a bubble. Teacher is to click on the bubble to reveal points earned. Tip: Alternate which team chooses bubble first

4 1 73 10 5 Add: Click for Answer

5 6 24 4 8 Subtract: Click for Answer

6 0 1011 65 Use the model to add Click for Answer

7 5 417 2 11 What goes in the place of the question mark? 6 Click for Answer

8 5 97 12 1 What goes in the place of the question mark? 9 Click for Answer

9 0 1011 65 Isaiah is building a model rocket. The body tube is yard long, and the nose cone is yard long. How tall will the rocket be when the parts are joined? Click for Answer

10 2 31 86 Jane and Deidra bought pound of chocolate. Together, they ate pound. What fraction of a pound of chocolate was left? Click for Answer

11 16 46 8 0 Add. Write as an improper fraction and a mixed number. Click for Answer

12 4 96 7 7 Subtract Write as an improper fraction and a mixed number. Click for Answer

13 2 16 13 Use the model to subtract Click for Answer

14 15 78 14 8 Change the following mixed number into an improper fraction. Click for Answer

15 19 137 9 12 Change the following improper fraction to a mixed number. Click for Answer

16 3 114 8 4 Add. Click for Answer

17 3 206 0 6 Subtract. Click for Answer

18 0 1011 65 Julie is making fruit salad. She first adds cups of pineapple and cups of grapes together. How much fruit has she mixed together? Click for Answer

19 10 113 8 2 Dave is measuring rainfall for a science project. In September inch of rain fell. In October inches of rain fell. How much more rain fell in October than in September? Click for Answer

20 0 1011 65 Lucy is making tacos. She needs cups of grated cheese. She has already grated cups. How much more does she need? Click for Answer

21 8 94 315 Dee walked her dog miles on Saturday and mile on Sunday. How far did she walk altogether? Click for Answer

22 1 08 2 4 What is the least common denominator for 8 and 12? 24 Click for Answer

23 6 103 3 What is the least common denominator for 10 and 12? 60 Click for Answer

24 6 24 4 8 The End! Click for Answer


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