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