Finding Unknown Angles Using Addition and Subtraction

Grade 445 min

aligned to 5.mg.3 The Student Will Classify And Measure Angles And Triangles, And Solve Problems, Including Those In Context.

Learning Objective

I can solve word problems to find missing angle measures by adding or subtracting angles on a diagram.

Lesson Flow

Watch Video

5 min

Adding and Subtracting Angles: 4.MD.7

Unknown Channel

Practice

14 min

7 questions • Short answer

Exit Ticket

5 min

Two angles form a larger angle. One angle measures 25°. The larger angle measures 68°. What is the measure of the other angle? A student cut a piece of paper into two angles. One angle measures 42° and the other angle measures 57°. If they put the two angles together, what is the measure of the total angle they create?

Teacher Guide

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  • Answer keys for all questions
  • Differentiation strategies
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