Module 4 Lesson 26 OneStep Equations―Addition and Subtraction.notebook
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Problem Set Lesson 25 Answers
Module 4 Lesson 26 OneStep Equations―Addition and Subtraction.notebook
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MODULE 4 Expressions and EquaonsTopic G: Solving Equaons
Lesson 26: One‐Step Equaons ―Addion and Subtracon
Student Outcomes§ Students solve one‐step equaons by relang an equaon to a diagram.
§ Students check to determine if their soluon makes the equaon true.
Module 4 Lesson 26 OneStep Equations―Addition and Subtraction.notebook
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Module 4 Lesson 26 OneStep Equations―Addition and Subtraction.notebook
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Let's see how to use tape diagrams to calculate soluons to one‐step equaons.
a + 2 = 8
8
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Module 4 Lesson 26 OneStep Equations―Addition and Subtraction.notebook
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Classwork Exercise 1 Solve each equaon. Use both tape diagrams and algebraic methods for each problem. Use substuon to check your answers.
a. b + 9 = 15
Module 4 Lesson 26 OneStep Equations―Addition and Subtraction.notebook
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b. 12 = 8 + c
Module 4 Lesson 26 OneStep Equations―Addition and Subtraction.notebook
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d 5 = 7
a. Demonstrate how to solve the equaon using tape diagrams.
b. Demonstrate how to solve the equaon algebraically.
c. Check your answer.
Exercise 2Given the equaon
Module 4 Lesson 26 OneStep Equations―Addition and Subtraction.notebook
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Example 3Solve each problem and show your work. You may choose which method (tape diagrams or algebraically) you prefer. Check your answers aer solving each problem.
a. e + 12 = 20
Module 4 Lesson 26 OneStep Equations―Addition and Subtraction.notebook
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b. f 10 = 15
Module 4 Lesson 26 OneStep Equations―Addition and Subtraction.notebook
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c. g 8 = 9
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Closing
Please take out your exit ticket for Lesson 26, close your binder, and complete the exit ticket. This will be collected.
Module 4 Lesson 26 OneStep Equations―Addition and Subtraction.notebook
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