1. Computation and Estimation Basic addition facts and corresponding subtraction facts to 18 SOL 2.6 Grade 2 Created by; Kim Smith

2. When adding, what does it involve? A.Subtracting B.Combining C.Dividing D.Multiplying 25 1234567891011121314151617181920 21222324252627

3. When subtracting, what does it involve? A.Combining B.Multiplying C.Separating D.Dividing 25 1234567891011121314151617181920 21222324252627

4. 5+4= A.2 B.9 C.8 D.10 25 1234567891011121314151617181920 21222324252627

5. 4+5= A.10 B.8 C.6 D.9 25 1234567891011121314151617181920 21222324252627

6. 9-5= 25 1234567891011121314151617181920 21222324252627 A.3 B.5 C.4 D.10

7. 9-4= A.5 B.10 C.4 D.3 25 1234567891011121314151617181920 21222324252627

8. 6+12= A.10 B.15 C.18 D.8 25 1234567891011121314151617181920 21222324252627

9. 12+6= A.10 B.18 C.2 D.8 25 1234567891011121314151617181920 21222324252627

10. 18-6= A.10 B.11 C.12 D.9 25 1234567891011121314151617181920 21222324252627

11. 18-12= A.6 B.5 C.12 D.10 25 1234567891011121314151617181920 21222324252627

12. 10 +5 A.10 B.15 C.14 D.18 25 1234567891011121314151617181920 21222324252627

13. 10 - 5 A.15 B.5 C.3 D.8 25 1234567891011121314151617181920 21222324252627

14. 9 + 9 A.10 B.19 C.18 D.17 25 1234567891011121314151617181920 21222324252627

15. 18 -9 A.8 B.10 C.9 D.7 25 1234567891011121314151617181920 21222324252627