Page 103 - Maths Skills - 7

Comparing Quantities 101

Activity

Objective: To learn and understand the concept of percentage.

Pre-Requisite Knowledge: 1. Concept of per cent.

2. Concept of fraction.

Materials Required: A 10 × 10 grid, crayons, a pencil and an eraser

Procedure: 1. Take a 10 × 10 grid and choose a number to be represented as percentage. Let it be 25%.

2. Colour 25 squares of the grid in any pattern as shown in Figure.
3. This represents 25 of 100, i.e., 25% .

4. Similarly, represent 75%, 20%, 63% and 15% on 10 × 10 grids and record your observations.
Paste your work in the given space.

5. Choose the next three values on your own.

Observations:
S. No. Per Cent Number of Coloured Squares Total Number of Squares

1. 25% 25 100

2.

3.
4.

5.