The document provides examples for calculating the volume of cuboids and cubes by counting the number of unit cubes that can fit within them. It gives the formulas for finding the volume of a 3D shape as length × breadth × height. It also provides examples of finding the total volume of combination 3D shapes made of multiple cuboids and cubes by adding their individual volumes.

1. Cube Cuboid Try to count how many cubes that can put into the cuboid ? 12 Example 1 FIND THE VOLUME OF 3D SHAPE BY COUNTING

2. Example 2 How many cubes that can put into the cuboid ? 12

3. Cube Cuboid ? Example 1 ? ? length breadth height 4 1 3

4. Example 2 ? ? ? length breadth height 3 2 2

5. Example 1 Example 2 length height breadth length breadth height 12 = 4 1 3 = 2 2 3 Total of the cubes Total of the cubes 12

6. Example 1 length height breadth 12 = 4 1 3 1.) In addition, subtraction, multiplication and division, what is the method that can use to solve the problem? Multiplication X X X X

7. Example 2 length breadth height = 2 2 3 Total of the cubes 12 X X X X Conclusion : 1.) What is the formula to find the volume of a 3D shape ? length X breadth X height

8. Find the volume of 3D So easy so easy Times length , breadth and the height Then get answer REMEMBER THE SONG VOLUME OF 3D SHAPE London Bridge Falling Down

9. Find the volume of a combination 3D shape. 3 cm 4 cm 2 cm 6 cm Volume A ( cube ) 3 cm X 3 cm X 3 cm = 27 cm 3 Volume B ( cuboid ) 6 cm X 4 cm X 2 cm = 48 cm 3 Volume A + Volume B = 27 cm 3 + 48 cm 3 = 75 cm 3 A B answer : 75 cm 3 Example

10. 1.) Find the volume of a combination 3D shape. 4 cm 9 cm 2 cm 4 cm 4 cm Volume A ( cube ) 4cm X 4cm X 4cm = 64 cm 3 Volume B ( cuboid ) 9cm X 4cm X 2cm = 72 cm 3 Volume A + Volume B = 64 cm 3 + 72 cm 3 = 136 cm 3 A B answer : 136 cm 3

11. 2.) Find the volume of a combination 3D shape. 2m 3m 2m 5m 2m Volume A ( cuboid ) 5m X 2m X cm = 30 m 3 Volume B ( cuboid ) 2m X 2m X 8m = 32 m 3 Volume A + Volume B = 30 m 3 + 32 m 3 = 62 m 3 A B 8m answer : 62 m 3

12. 3.) Find the volume of a combination 3D shape. 2cm Volume A ( cuboid ) 5cm X 2cm X 2cm = 20 m 3 Volume B ( cuboid ) 7cm X 2cm X 2cm = 28 cm 3 Volume C ( cube ) 2cm X 2cm X 2cm = 8 cm 3 Volume A + Volume B + Volume C = 20 cm 3 + 28 cm 3 + 8 cm 3 = 56 m 3 answer : 56 cm 3 2cm 2cm 2cm 2cm 5cm 7cm A B C