I thought that these tasks were the perfect way to promote higher-order thinking in my first grade classroom. Additionally, they are great for preparing students for those rigorous performance-based tasks that we are seeing on district/state assessments. I plan on using these both in small groups and as independent work during my math workshop block. The product comes with 15 different tasks for a low prince of $2.50 over at my TPT store :)
This then led to the bundle! In case you are interested in having tasks for both OA and NBT standards, this is the perfect resource for you.