ทดลองทำข้อสอบ Worksheet by Metta Chaisura Language UND Assignments 9 classrooms used this worksheet 1. 1 + 1 = 1 2 3 2. 2+2= 3 4 5 3. 3+2= 2 4 5 4. 6+1= 5 6 7 5. 4+2= 6 7 8 Use This Worksheet