01-Abacus Basic Sums Leave a Comment / By Naresh / May 31, 2025 Welcome to your 01-Abacus Basic Sums 1. 2 + 7 - 6 2. 2 + 1 + 5 3. 2 + 2 - 3 4. 1 + 6 - 2 5. 3 + 5 - 6 6. 2 + 7 - 8 7. 3 + 6 - 4 8. 1 + 8 - 6 9. 2 + 2 - 1 10. 4 + 5 - 1 11. 2 + 7 - 4 12. 3 + 5 - 7 13. 1 + 2 - 2 14. 3 + 6 - 4 15. 6 + 2 - 7 1 out of 1