These open-ended Hundreds Chart Challenges (Junior Edition) will strengthen your students’ number sense, place value understandings and their ability to problem solve and reason. In this set, we have provided 6 different task cards that include 100s chart challenges and 200s chart challenges, perfect for students in Foundation to Year 3. Use these task cards as a warm up/fluency task, during a mini lesson alongside a ‘think aloud’ or as an independent or collaborative task. Encourage your students to find multiple solutions or prove that they have found ALL of the possible solutions.