Get Your Students Finding Missing Angles

Once your students have mastered the skill of drawing and measuring angles with a protractor, they’re ready to tackle more advanced concepts. One such concept is finding the size of an unknown angle in a variety of mathematical contexts. 

This digital maths game has been designed by our experienced team of teachers to help your students find the missing angle in a variety of angle types. Students are required to use their known angles facts along with addition and subtraction to find the missing adjacent angle on a variety of diagrams. The angle types included in the resource are:

• Right angles
• Straight angles
• Acute angles
• Obstuse angles
• Reflex angles
• Angles at a point

Three multiple-choice options are provided. If students choose the incorrect answer, they are directed to a “Try again” slide, which allows them to return to the previous question for another attempt. If the student chooses the correct answer, they are directed to a “Hooray!” slide and progress to the next question. The resource includes 12 questions in total.

Use the dropdown menu to select the Google Slides version of this resource. Be sure to operate the presentation in Slideshow mode to enable the interactive features.

This resource makes a great revision activity once your students have already had some experience with finding missing angles. 

More Find the Missing Angle Activities

Digital games are a fabulous resource when it comes to reviewing key content with your students. This finding missing angles resource has been designed specifically for 4th grade (so you know it’s age-appropriate) and aligns with the 4th grade curriculum (so you know it’s helping your student achieve those key learning objectives)!

As with most mathematical concepts, repeated practice is paramount when it comes to student mastery. If you’re looking for a resource to further advance your students’ understanding of this concept, look no further than our Missing Angle Task Cards. This set of 18 task cards will enable your students to demonstrate their understanding of how to find the size of a missing angle when a larger angle has been decomposed into non-overlapping parts.

Get Started with This Finding Missing Angles Resource

Use the Download button to access the Google Slides version of this resource. (Note: You will be prompted to make a copy of the Google Slides template before accessing it.)

Project the resource onto your screen and work through the slides as a class for a paperless lesson, or assign it to your students in Google Classroom.

More 4th Grade Angles Activities

Looking for more activities to enhance your 4th grade maths lessons on all things angles? Explore this great selection of teacher-created resources!

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Building With Angles – 4th Grade Interactive Math Game

Transport your students to a local construction site to solve building-related angle problems with this interactive math game.

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Angle Word Problems – 4th Grade Math Worksheet

Download these angles word problem worksheets so your students can practice calculating missing angles.

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Angles 4th Grade Math Project – Design a Room

Turn your students into interior designers with this inquiry-based math project based on drawing and measuring angles.