What is Mental Arithmetic?
Mental Arithmetic is a tested way of developing a child’s academic abilities and creative thinking in a balanced way, allowing them to reach their full intellectual potential. It’s more than learning how to count fast. Mental arithmetic leads to:
• A powerful visual and auditory memory
• Increased concentration
• Resourcefulness
• Innovative problemsolving methods
• Improved thought processes
At the beginning of the course, an abacus is used to learn the counting techniques. Later, children learn to do calculations in their head by forming a mental image of a number on the abacus and can do all mathematical operations (addition, subtraction, multiplication, and division) with any numbers in mind.
What you will learn
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Addition and Subtraction with 2 and 3digit numbers, using all methods

Mental Calculation techniques

Common mistakes
Preparatory level (35 months)
During the course we will introduce you to numbers on the abacus as well as addition and subtraction methods. We will guide you through Abacus and Mental Calculation methods for children aged 5 to 15 years old. Children develop concentration and attention span, visual thinking, photographic and auditory memory through mental counting.

Preparatory level (35 months)

Level 1 (57 months)

Level 2 (23 months)
Course curriculum

1
Introduction to Mental Arithmetic
 Intro
 What is Mental Arithmetic?
 FAQ

2
Abacus and Simple method
 Abacus and Numbers
 Abakus and Numbers. Quiz
 How to use an abacus. Simple method
 Simple (1digit number)
 Explanation (1digit number)
 Simple (12 digit number)
 Explanation (12 digit number)
 Simple (2digit number)
 Explanation (2digit number)

3
Small Friend method (Addition)
 SF +1
 SF +1 (1digit number)
 Explanation SF +1 1D
 SF +1 (2digit numbers)
 Explanation SF +1 2D
 SF +2
 SF +2 (2digit numbers)
 Explanation SF +2
 SF +3
 SF +3 (2digit numbers)
 Explanation SF +3
 SF +4
 SF +4 (2digit numbers)
 Explanation SF +4

4
Mental Calculation. Visualization
 Visualization

5
Small Friend method (Subtraction)
 SF 1
 SF 1
 Explanation SF 1
 SF 2
 SF 2
 Explanation SF 2
 SF 3
 SF 3
 Explanation SF 3
 SF 4
 SF 4
 Explanation SF 4

6
Mental Calculation. Two types
 Two types

7
Common mistakes in Small Friend method
 Common mistakes in SF

8
Big Friend method (Addition)
 BF +9
 BF +9
 Explanation BF +9
 BF +8
 BF +8
 Explanation BF +8
 BF +7
 BF +7
 Explanation BF +7
 BF +6
 BF +6
 Explanation BF +6
 BF +5
 BF +5
 Explanation BF +5
 BF +4
 BF +4
 Explanation BF +4
 BF +3
 BF +3
 Explanation BF +3
 BF +2
 BF +2
 Explanation BF +2
 BF +1
 BF +1
 Explanation BF +2

9
Skipped columns (Addition)
 Skipped columns (Addition)

10
Big Friend method (Subtraction)
 BF 9
 BF 9
 Explanation BF 9
 BF 8
 BF 8
 Explanation BF 8
 BF 7
 BF 7
 Explanation BF 7
 BF 6
 BF 6
 Explanation BF 6
 BF 5
 BF 5
 Explanation BF 5
 BF 4
 BF 4
 Explanation BF 4
 BF 3
 BF 3
 Explanation BF 3
 BF 2
 BF 2
 Explanation BF 2
 BF 1
 BF 1
 Explanation BF 1

11
Skipped columns (Subtraction)
 Skipped columns (Subtraction)

12
Common mistakes in Big Friend method
 Common mistakes in BF

13
Mixed method (Addition)
 Mixed addition
 Mix +6
 Explanation Mixed +6
 Mix + 7
 Explanation Mixed +7
 Mix +8
 Explanation Mixed +8
 Mix + 9
 Explanation Mixed +9

14
Mixed method (Subtraction)
 Mixed subtraction
 Mix 6
 Explanation Mixed 6
 Mix 7
 Explanation Mixed 7
 Mix 8
 Explanation Mixed 8
 Mix  9
 Explanation Mixed 9

15
All methods
 All methods. Practice
 Explanation (all methods)

16
Tools
 Tools

17
Common mistakes. Methods
 Part 1
 Part 2

18
Homework
 Homework