According to Achieve the Core, (achievethecore.org), "The joint purpose of this task is to provide students an opportunity to practice two-digit subtraction with regrouping and to engage students in looking for and expressing regularity in repeated reasoning (MP.8). Throughout grade 2, students need many opportunities to practice subtraction in order to achieve fluency subtracting within 100 by the end of the grade. For students in grade 2, it is sufficient for them to recognize that differences of 9 will stem from numbers whose digits differ by 1, subtractions resulting in 18 will stem from numbers whose digits differ by 2, etc. "
- Subject:
- Mathematics
- Material Type:
- Game
- Learning Task
- Lesson
- Lesson Plan
- Provider:
- Adapted from Global Education
- Date Added:
- 08/31/2015