9. Add and Subtract Angles
Add and Subtract Angles Worksheet addresses the concept of decomposing angles into two or more smaller angles. An angle can be visualized as made up of two or more non-overlapping parts (smaller angles). With this understanding, students add or subtract two given angles in this worksheet.
Common Core Alignment
4.MD.7Recognize angle measure as additive. When an angle is decomposed into non-overlapping parts, the angle measure of the whole is the sum of the angle measures of the parts. Solve addition and subtraction problems to find unknown angles on a diagram in real world and mathematical problems, e.g., by using an equation with a symbol for the unknown angle measure.