16 Chapters:

1 Rational Numbers

2 Linear Equations in One Variable

3 Understanding Quadrilaterals

4 Practical Geometry

5 Data Handling

6 Squares and Square Roots

7 Cubes and Cube Roots

8 Comparing Quantities

9 Algebraic Expressions and Identities

10 Visualising Solid Shapes

11 Mensuration

12 Exponents and Powers

13 Direct and Inverse Proportions

14 Factorisation

15 Introduction to Graphs

16 Playing with Numbers

27 Chapters:

1 Rational Numbers

2 Powers

3 Squares and Square Roots

4 Cubes and Cube Roots

5 Playing with Numbers

6 Algebraic Expressions and Identities

7 Factorization

8 Division of Algebraic Expressions

9 Linear Equation in One Variable

10 Direct and Inverse Variations

11 Time and Work

12 Percentage

13 Proft, Loss, Discount and Value Added Tax (VAT)

14 Compound Interest

15 Understanding Shapes-I (Polygons)

16 Understanding Shapes-II (Quadrilaterals)

17 Understanding Shapes-III (Special Types of Quadrilaterals)

18 Practical Geometry (Constructions)

19 Visualising Shapes

20 Mensuration - I (Area of a Trapezium and a Polygon)

21 Mensuration - II (Volumes and Surface Areas of a Cuboid and a Cube)

22 Mensuration - III (Surface Area and Volume of a Right Circular Cylinder)

23 Data Handling-I (Classification and Tabulation of Data)

24 Data Handling-II (Graphical Representation of Data as Histograms)

25 Data Handling-III (Pictorial Representation of Data as Pie Charts or Circle Graphs)

26 Data Handling-IV (Probability)

27 Introduction to Graphs

13 Chapters:

1 Rational Numbers

2 Data Handling

3 Square-Square Root and Cube-Cube Root

4 Linear Equation In One Variable

5 Understanding Quadrilaterals and Practical Geometry

6 Visualising Solid Shapes

7 Algebraic Expression, Identities and Factorisation

8 Exponents and Powers

9 Comparing Quantities

10 Direct and Inverse Proportions

11 Mensuration

12 Introduct To Graphs

13 Playing With Numbers