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Subtract a Mixed Number from a Mixed Number




 

Videos to help Grade 4 students learn how to subtract a mixed number from a mixed number.

Topic F: Addition and Subtraction of Fractions by Decomposition

Common Core Standards: 4.NF.3c, 4.NF.3d, 4.MD.4, 4.MD.2

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Lesson Plans and Worksheets for Grade 4

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Common Core For Grade 4

NYS Common Core Grade 4 Module 5, Lesson 33


Lesson 33 Concept Development

Problem 1: Subtract a mixed number from a mixed number by counting up.

Problem 2: Subtract a mixed number from a mixed number when there are not enough fractional units by first subtracting the whole numbers and then decomposing the subtrahend.

Problem 3: Subtract a mixed number from a mixed number when there are not enough fractional units by decomposing a whole into fractional parts.



Lesson 33 Homework

1. Write a related addition sentence. Subtract by counting on. Use a number line or the arrow way to help. The first one has been partially done for you.

2. Subtract, as shown in Problem 2(a) below, by decomposing the fractional part of the number you are subtracting. Use a number line or the arrow way to help you.

3. Subtract, as shown in 3(a) below, by decomposing to take one out. 4. Solve using any strategy.


 

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