Fluency Exercise: Addition and Subtraction Equations

This Fluency Practice is a part of the Lesson 9, Unit 5, Grade 6. Students find the perimeter of irregular figures using coordinates to find the length of a side joining points with the same first coordinate or the same second coordinate. Students find the area enclosed by a polygon on the coordinate plane by composing or decomposing using polygons with known area formulas. The solutions given throughout the lesson only represent some of the correct answers to the problems.