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Which sequence do you get when you start to add the Counting numbers up? Can you give a smaller pictorial explanation?

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NCERT Solutions for Class 6 Maths Ganita Prakash Chapter 1
Ganit Prakash class 6 Maths
Patterns in Mathematics class 6
Important NCERT Questions Based on new NCERT Books for Session 2024-2025
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  1. Sequence When Adding the Counting Numbers Up:
    Adding the counting numbers up gives triangular numbers (1, 3, 6, 10, 15, …). Pictorially, we can visualise each sum as a triangle of dots, where each layer has one more dot than the previous layer.

    To see the complete Chapter 1, Visit here:
    https://www.tiwariacademy.com/ncert-solutions-class-6-maths-ganita-prakash-chapter-1/

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  2. When you add the counting nos. Sequentially, you get the following sequence:
    1=1
    1+2=3
    1+2+3=6
    1+2+3+4=10

    ● ● ●
    ● ● ● ● ● ●
    ● ● ● ● ● ● ● ● ● ●
    1=1 1+2=3 1+2+3=6 1+2+3+4=10

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  3. When you start to add the counting nos. Sequentially, you get the following sequence:
    1=1
    1+2=3
    1+2+3=6
    1+2+3+4=10

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