1.1 Square Numbers

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Part of NCERT 8 Math

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Last updated Jan 23, 2026. Clone to remix or explore the blocks below.

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concept

Square Numbers

Understanding what makes a number a perfect square

From the locker puzzle, we discovered that perfect squares have a special property.

Definition: A square number is obtained by multiplying a number by itself.

$n \times n = n^2$ (read as "n squared")

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Visual definition

Stack numbers row by row—start with one 1, add two 2s beneath it, then three 3s below those—and count the whole pile to find your total!

▶ Start

Tap to begin

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