Computing technology

Author: Yao Longlong
Publisher:
Publish Date: 2005-10-01
Features:
1. Overview
1.1 Origin and Development of Abacus
1.2 Summary of Functions of Abacus
2. Basic Knowledge of Abacus
2.1 Types, Structure, and Characteristics of the Abacus
2.2 Finger Techniques for Operating the Abacus
2.3 Basic Skills for Operating the Abacus
2.4 Common Terms in Abacus Calculation
Summary
3. Writing Requirements for Check Digits
3.1 Chinese Numerals (Large Writing) and Requirements
3.2 Arabic Numerals and Requirements
Summary
4. Basic Addition and Subtraction in Abacus
4.1 Basic Addition and Subtraction
4.2 Verification of Addition and Subtraction
4.3 Several Common Practice Methods
Summary
5. Basic Multiplication in Abacus
5.1 Method of Positioning the Product
5.2 Multiplication Tables (Nine Multiplication)
5.3 Single-Digit Multiplication
5.4 Multiple-Digit Multiplication
Summary
6. Basic Division in Abacus
6.1 Method of Positioning the Quotient
6.2 Division by Multiplication (Division Method)
6.3 Division by Division (Division Method)
Summary
7. Simplified Addition and Subtraction
7.1 Complement Addition and Subtraction
7.2 Parallel Addition and Subtraction
7.3 Reverse Subtraction
Summary
8. Simplified Multiplication
8.1 Approximate Multiplication
8.2 Complement Multiplication
8.3 Follow-Up Multiplication
8.4 One-Digit Multiplication (One-Digit Multiplication)
Summary
9. Simplified Division
9.1 Approximate Division
9.2 Complement Division
9.3 One-Digit Division (One-Digit Division)
Summary
10. Multiplication, Division, and Combined Division
10.1 Combined Multiplication
10.2 Combined Division
10.3 Combined Division
Summary
11. Bill Calculation and Ledger Calculation
11.1 Bill Calculation
11.2 Ledger Calculation
Summary
12. Cash Counting and Interest Calculation
12.1 Methods and Techniques for Cash Counting
12.2 Interest Calculation
Summary
13. Abacus Brain Calculation
13.1 Basic Skills for Abacus Brain Calculation
13.2 Brain Calculation for Addition and Subtraction
13.3 Brain Calculation for Multiplication
13.4 Brain Calculation for Division
Summary
14. Basic Usage of Electronic Calculators
14.1 Operating Methods of Calculators
14.2 Precautions for Using and Storing Electronic Calculators
Summary.......