This Fluency Activity is a part of the Lesson 15, Unit 7, Grade 2. By practicing subtraction facts, students gain mastery of differences within 20. This can be a teacher-directed, whole-class activity or an opportunity for students to work in pairs. The teacher can hold the cards and use choral response or distribute the cards and have students pair up to question each other.
Other Fluency Activities related to this standard
18 min(s)
10 min(s)