{"type":"rich","version":"1.0","title":"Mental Math: Tens and Hundreds","description":"Players complete number sentences with missing values, such as 470 + 100 = ___ and ___ - 10 = 561, using a word bank of number chips. The activity builds fluency with mental addition and subtraction of tens and hundreds. (2.NBT.B.8)","author_name":"Padlet Arcade","thumbnail_url":"https://arcade.padlet.com/open-graph/social-preview-image.png?timestamp=1774334725562&hashid=7qje5202jl","html":"<iframe src=\"https://arcade.padlet.com/embed/7qje5202jl\" width=\"720\" height=\"480\" frameborder=\"0\" allowfullscreen></iframe>","width":720,"height":480,"provider_name":"Padlet Arcade","provider_url":"https://arcade.padlet.com"}