Abacus Mind

Pre-requisite: Abacus Foundation

---

Module Content

• Big Friend Add Order Formula
• Big Friend Less Order Formula
• Small Friend Add Order Formula
• Small Friend Less Order Formula
• Combination Add Order Formula
• Combination Less Order Formula
• Tens/Unit  addition and subtraction sums up to 4 rows using all formulas
• Introduction to Hundred in abacus
• Mental arithmetic practice