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Getting Started
Counting and Setting Numbers
Direct Addition
Direct Subtraction
Addition
Addition by Grouping
Adding with Five Extras
Subtracting with Five Extras
Adding with Ten Extras
Adding with Five Extras and Ten Extras
Adding Decimals and Columns of Decimals
Addition by Counting
The 4 to 5 Exchange
The 9 to 10 Exchange
The 49 to 50 Exchange
The 99 to 100 Exchange
Putting it All Together - Adding Multiple Columns
Adding Decimals and Columns of Decimals
Subtraction
Subtraction by Grouping
Subtracting with Five Extras and Ten Extras
Subtracting with Ten Extras
Subtracting Decimals and Columns of Decimals
Subtraction by Counting
The 5 to 4 Exchange
The 10 to 9 Exchange
The 50 to 49 Exchange
The 100 to 99 Exchange
Putting it All Together
Subtracting Decimals and Columns of Decimals - 1
Multiplication
Double Abacus Multiplication
Multiplying with Single digits
Multiplying Larger Numbers with Single digits
Multiplying Larger Numbers
Multiplying Decimal Numbers
Single Abacus Multiplication
Multiplying-only-with-Single-digits
Multiplying-with-Single-digits
Multiplying-with-Larger-Numbers
Multiplying-with-Any-Size-Numbers
Multiplying-Decimals
Division
Double Abacus Division
Basic Division
Short Division
Long Division
Long Division with Larger Divisors
Dividing Decimals
Single Abacus Division
Basic-Division
Short-Division
Long-Division
Long-Division-with-Larger-Divisors
Dividing-Decimals
Fractions
Basic Fractions
Reducing Fractions
Lowest Common Denominator
Double Abacus Fractions
Adding Fractions
Subtracting Fractions
Multiplying Fractions
Dividing Fractions
Single Abacus Fractions
Adding-and-Subtracting-Fractions
Multiplying-and-Dividing-Fractions
Decimals
History of Numbers and the Abacus
Books
Math Genie Abacus Simulator
KU Class - 2024
www.learningtheabacus.com
Math Genie Abacus Simulator
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