{"type":"rich","version":"1.0","description":"Players sort addition problems into three categories: add ones only, add tens only, or compose a new ten. This helps students identify the place value strategy that fits each problem before solving. (1.NBT.C.4)","title":"Addition Strategy Sort","width":720,"html":"<iframe src=\"https://arcade.padlet.com/embed/9LKlNxy0jD\" 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=1781134724605&hashid=9LKlNxy0jD","provider_url":"https://arcade.padlet.com"}