1.3. n Digit Numbers
1.4. Place of a Digit
1.7. Rounding Numbers
1.7.1. Rounding off numbers
1.7.1.1. Rounding off to the nearest ten
1.7.1.2. Rounding off to the nearest hundred
1.7.1.3. Rounding off to the nearest thousand
1.7.2. Estimating Sum
1.7.3. Estimating Difference
1.7.4. Estimating Products
1.7.5. Estimating Quotients
4. Integers
6. Fractions
7. Decimals
10. Unitary Method
13. Mensuration
14. Geometry
16. Linear Symmetry
17. Data Handling