📐 Decimal Fractions: Reading and Writing
Десятичные дроби: чтение и запись
🔢 What is a Decimal Fraction?
Definition (Определение):
A decimal fraction is a fraction whose denominator is a power of 10 (10, 100, 1000, etc.), written using a decimal point.
Examples:
- 3/10 = 0.3
- 47/100 = 0.47
- 125/1000 = 0.125
Why Decimals Matter
💰 Money
12.50 som
12.50 som
📏 Measurements
1.75 m
1.75 m
🏃 Sports
9.58 seconds
9.58 seconds
🔬 Science
π ≈ 3.14159
π ≈ 3.14159
📊 Place Value Chart (Разрядная таблица)
| Whole Part (Целая часть) | . | Fractional Part (Дробная часть) | ||||||
|---|---|---|---|---|---|---|---|---|
| Thousands Тысячи |
Hundreds Сотни |
Tens Десятки |
Ones Единицы |
Decimal Point |
Tenths Десятые |
Hundredths Сотые |
Thousandths Тысячные |
Ten-thousandths Десятитысячные |
| 1000 | 100 | 10 | 1 | . | 1/10 | 1/100 | 1/1000 | 1/10000 |
| 1000 | 100 | 10 | 1 | . | 0.1 | 0.01 | 0.001 | 0.0001 |
Tenths (Десятые)
First place after decimal point
0.1 = 1/10
Dividing 1 into 10 equal parts
Hundredths (Сотые)
Second place after decimal point
0.01 = 1/100
Dividing 1 into 100 equal parts
Thousandths (Тысячные)
Third place after decimal point
0.001 = 1/1000
Dividing 1 into 1000 equal parts