Mental Math for Seniors

Abacus Math/Mental Math Level 4


This course emphasis on Application of all the formulas for Addition and Subtraction on Abacus and on fingers as well.

Student Learning Outcomes:
• Addition and Subtraction on Fingers with all formulas.
• Addition and Subtraction on Abacus with all formulas.
• Working with House of 5 Formulae for Subtraction.
• Application of Multiple Formulae.
• Working on Hundreds using Abacus
• Speed calculation
• Imaginary Calculation

• Pen and Paper
• Soroban Abacus
• Internet
• Laptop/desktop
• Pre-request Course: NA

Course Outline:

Following is the course outline of the course:

Introduction To House Of 10 Subtraction -9 Formula

House Of 10 (-8)

House Of 10 (-7)

House Of 10 (-9, -8 And -7)

House Of 10 (-6)

Practice Day

House Of 10 (-5)

House Of 10 (-4)

House Of 10 (-3)

House Of 10 (-2)

House Of 10 (-1)

Practice Day


Certificate distribution

About Us

EDVON is the unique online 1:1 live coding, robotics and mathematics program based on STEAM philosophy that will help your kids to be successful in future, by teaching them highly demanding 21st century technical and soft skills.