Mastering Decimal Numbers and Operations

📋 Course Outline

1. Decimal Number System
2. Place Value in Decimals
3. Reading Decimal Numbers
4. Writing Decimals in Words
5. Converting Decimals and Fractions
6. Rounding Decimals
7. Adding and Subtracting Decimals
8. Multiplying Decimals
9. Dividing Decimals

📖 1. Decimal Number System

🔑 Key Concepts & Definitions

• Decimal Number System: A base-10 numbering system that uses ten digits (0-9) to represent all numbers.
• Digit: A single numerical symbol used in a number; in decimal, digits range from 0 to 9.
• Place Value: The value assigned to a digit based on its position within a number, increasing by powers of 10 from right to left.
• Number: A quantity represented by a combination of digits in the decimal system.
• Radix (Base): The number of unique digits, including zero, used in a positional number system; for decimal, radix = 10.
• Nueros Decimales (Decimal Fractions): Numbers expressed with a decimal point, representing parts of a whole (e.g., 3.14).

📝 Essential Points