{"type":"rich","version":"1.0","description":"Players study flashcards that show a number and an operation on the front, such as 458 - 100, and the answer with a place value hint on the back. The deck supports review and pattern recognition for mentally changing tens and hundreds digits. (2.NBT.B.8)","title":"Mental Math: +/- 10 and 100","width":720,"html":"<iframe src=\"https://arcade.padlet.com/embed/3qpAkLA7rD\" width=\"720\" height=\"480\" frameborder=\"0\" allowfullscreen></iframe>","height":480,"provider_name":"Padlet Arcade","author_name":"Padlet Arcade","thumbnail_url":"https://arcade.padlet.com/open-graph/social-preview-image.png?timestamp=1780450219676&hashid=3qpAkLA7rD","provider_url":"https://arcade.padlet.com"}