Suppose we use matchsticks to make letter F

10.jpg

Here, we used 4 matchsticks

 

Suppose, we want to Make more than one Fs.

11.jpg

So,

2 Fs require 8 matchsticks

3 Fs require 12 matchsticks

4 Fs require 16 matchsticks

    and so on……

12.jpg

 

 

So,

     we can say that

Number of matchsticks = 4 × Number of Fs

  Writing n = number of Fs

Number of matchsticks = 4n

Let’s check

For n = 1, Number of matchsticks = 4 × 1 = 4



For n = 2, Number of matchsticks = 4 × 2 = 8

For n = 3, Number of matchsticks = 4 × 3 = 12

 

So, writing

  Number of matchsticks = 4 n

makes our job easier

 

Suppose we have to make 100 Fs

  Number of matchsticks = 4 × 100

 = 400

  1. Chapter 11 Class 6 Algebra
  2. Concept wise
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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.