Loading
In this video, students will learn the Big Friends Formula -7, written as -7 = -10 + 3. This technique simplifies subtraction when direct removal is not possible.
It helps improve accuracy, speed, and confidence in calculations. This concept is widely used in abacus learning programs to strengthen mental maths skills.
What Is Abacus? Learn Basics of Maths & Mental Calculation for Kids | AbacusTrainer
Brief Introduction About Abacus Tool | What Is Abacus? Learn Basics | AbacusTrainer
Top Benefits of Learning Abacus for Kids | Boost Brain Power
Finger Abacus Explained | Learn Mental Math Techniques
Abacus Trainer brings 4+ years of expertise in Abacus and Vedic Maths, trusted by 5,000+ students and teachers. We offer online courses for children, school programs, competition conductor, teacher training, franchise support, and worksheet subscriptions, providing end-to-end solutions for both learning and teaching.
Copyright @2026 ABACUS Trainer. All Rights Reserved by Deccan Spark Technologies
Advt
