These problems are designed to challenge your students and provide them an opportunity to develop their reasoning skills in math. The pdf can be projected for whole-class direct instruction or printed for center work or independent practice. Following each problem, I have provided the correct answer as well as the rationale of why students may have chosen the incorrect answers. This will help you pinpoint the direction of your students' thinking for reteach or intervention uses. Standards covere
Once your students have mastered the standard dot combinations for subitizing, try these! They are a bit more complex and will challenge your students to find patterns and combinations quickly.