| --- |
| source: ncert |
| topic: arithmetic |
| class_level: class_6 |
| chapter: ch8 |
| difficulty: beginner |
| --- |
| |
| Class 6 | Ch8: Decimals |
| Place value: 45.378 → 4=tens, 5=ones, 3=tenths, 7=hundredths, 8=thousandths. |
| Conversion: 0.375=375/1000=3/8. Fraction to decimal: divide (3/4=0.75). |
| Multiplication: count total decimal places. 3.25×1.4=325×14/1000=4550/1000=4.55. |
| Division by decimal: multiply both to remove decimal. 8.64÷0.6=86.4÷6=14.4. |
| Comparison: compare whole part, then tenths, then hundredths. |
| Always align decimal points during addition and subtraction. |
| 0.5×0.5=0.25 (not 0.025). Count 1+1=2 decimal places. |
