Practice math with beautiful VINTAGE Flash Cards!This version is: Middle School Math, Grade 6, Percent Increase Problems These vintage flash cards include 25 questions with answers on the back. They are ready to print and cut, and come in three printable versions: Full Color, Black & White, and Plain. Editable versions of each are also included, so the questions and answers can be deleted and replaced if you wish. A full digital version is included and can be used in PowerPoint or Google Slides