Class 6 • Mathematics • Chapter 8
Decimals
Learn decimal numbers, decimal places, comparison, number-line representation, addition and subtraction through simple examples.
Learn the Basics
Important Concepts
Understand decimals step by step.
Tenths and Hundredths
Understand decimal places such as tenths and hundredths and their values.
Decimal Representation
Learn how fractions with denominators 10 and 100 can be represented as decimals.
Comparing Decimals
Compare decimal numbers by examining their place values.
Decimals on a Number Line
Represent decimal numbers between whole numbers on a number line.
Addition of Decimals
Learn how to add decimal numbers by aligning their decimal points.
Subtraction of Decimals
Subtract decimal numbers carefully using place values.
Understand with Examples
Worked Examples
Tenths
Example
7/10
= 0.7
Hundredths
Example
35/100
= 0.35
Addition
Example
4.25 + 3.60
= 7.85
Visual Learning
Decimal Place Value
Each digit after the decimal point represents a smaller place value.
4
Ones
2
Tenths
5
Hundredths
Quick Notes
Remember These Points
- • The first place after the decimal point is tenths.
- • The second place after the decimal point is hundredths.
- • Decimal points should be aligned when adding or subtracting decimals.
- • Zeros can be added to the right of a decimal without changing its value.
- • Decimals can be represented on a number line.
Practice
Practice Questions
Write 7/10 as a decimal.
Write 35/100 as a decimal.
Which is greater: 0.7 or 0.65?
Add: 4.25 + 3.60.
Subtract: 8.50 - 3.25.
Represent 0.6 on a number line.
Test Yourself
Revise decimal places, comparison and operations before taking the quiz.