Examples, solutions and videos to help Grade 4 students learn how to add a mixed number and a fraction.
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Common Core For Grade 4
Topic F: Addition and Subtraction of Fractions by Decomposition
Common Core Standards: 4.NF.3c, 4.NF.3d, 4.MD.4, 4.MD.2
Download Worksheet for Common Core Grade 4, Module 5, Lesson 30
Lesson 30 Concept Development
Problem 1: Use unit form and the number line to add a mixed number and a fraction having sums of fractional units less than or equal to 1.
Problem 2: Complete a unit of one to add a mixed number and a fraction.
Problem 3: Decompose a sum of a mixed number and a fraction with sums of fractional units greater than 1.
Problem 4: Decompose a fractional addend to make one before finding the sum.
Lesson 30 Problem Set 1
Solve.
Complete the number sentences.
Draw a number bond and the arrow way to show how to make one. Solve.
Solve
To solve 7 9/10 + 5/10 Maria thought, “7 9/10 + 1/10 = 8, and 8 + 4/10 = 8 4/10.” Paul thought, “7 9/10 + 5/10 = 7 14/10 = 7 + 10/10 + 4/10 = 8 4/10." Explain why Maria and Paul are both right.
Lesson 30 Homework
Solve.
Complete the number sentences.
Draw a number bond and the arrow way to show how to make one. Solve.
Solve.
To solve 4 8/10 + 3/10, Carmen thought, “4 8/10 + 2/10 = 5, and 5 + 1/10 = 5 1/10." Benny thought, “4 8/10 + 3/10 = 4 11/10 = 4 + 10/10 + 1/10 = 5 1/10." Explain why Carmen and Benny are both right.
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