CBSE Class 6 Maths Chapter 8 Notes Decimals

Decimals Class 6 Notes Conceptual Facts

1. Fractions with denominators 10, 100 and 1000, etc., can be represented as decimal fractions.
For example:\( \frac{7}{10}, \frac{21}{100} \text { and } \frac{223}{1000}\)etc., are all decimal fractions.

2. If a whole number is divided into 10 equal parts, then each part is called one-tenth of a unit and written
as \(\frac{1}{10}\) and 0.1 in decimal notations.

3. If a whole number is divided into 100 equal parts, then each part is called one-hundredth of a unit and written as \(\frac{1}{100}\) and 0.01 in decimal notation.

4. In standard form, the decimal is always put between the unit place and tenths-place.

5. In the place value chart, as we go from left to the right, the multiplying factor becomes factor \(\frac{1}{10}\) of the previous factor.

6. All decimals can also be represented on number line.

7. Decimals are used in many way in our lives. For example, in representing units of money, length and weight.

8. Decimal numbers having the same number of decimal places are called ‘Like decimals’.
For example: 0.23, 1.26, 3.65 are all like decimals.

9. Decimal numbers having different number of decimal places are called ‘unlike decimals’.
For example: 2.34, 5.650, 4.2350 are all unlike decimals.