https://www.khanacademy.org/math/revision-term-1-ncert-math-class-8-new/x5cae60c7d482f499:week-1/x5cae60c7d482f499:a-square-and-a-cube/v/introduction-to-squares-and-perfect-square-numbers 2025-07-23T04:44:00.101982587Z Introduction to squares and perfect square numbers Confused about what a perfect square really is? This video clears it up by first explaining the exact definition, then comparing squares with perfect squares to highlight the difference. You'll see plenty of examples, learn important properties, and even understand how to tell perfect squares apart from non-perfect ones — all in a clear, step-by-step way that's easy to follow Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Introduction to squares and perfect square numbers Confused about what a perfect square really is? This video clears it up by first explaining the exact definition, then comparing squares with perfect squares to highlight the difference. You'll see plenty of examples, learn important properties, and even understand how to tell perfect squares apart from non-perfect ones — all in a clear, step-by-step way that's easy to follow https://cdn.kastatic.org/ka-youtube-converted/1P2EmXG96cY.mp4/1P2EmXG96cY.mp4 475 Square Numbers https://www.khanacademy.org/math/revision-term-1-ncert-math-class-8-new/x5cae60c7d482f499:week-1/x5cae60c7d482f499:a-square-and-a-cube/e/find-square-of-integers 2025-08-14T09:23:45.494017813Z Find square of integers Practice problems to find square of integers. Satya Swaroop exercise https://www.khanacademy.org/math/revision-term-1-ka-math-class-8/x36423c781f0794f3:week-2/x36423c781f0794f3:squares-and-square-roots/v/properties-of-square-numbers 2024-05-22T12:23:15.65535171Z Properties of Square numbers Learn about the properties of square numbers using fun way! Devashish Phadnis video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Properties of Square numbers Learn about the properties of square numbers using fun way! https://cdn.kastatic.org/ka-youtube-converted/HuxKe-fFddA.mp4/HuxKe-fFddA.mp4 424 Square Numbers https://www.khanacademy.org/math/od-math-class-8-new-book/x648dc020d7206462:a-square-and-a-cube/x648dc020d7206462:square-numbers/e/more-properties-of-square-numbers 2026-01-14T04:19:20.590610231Z More properties of square numbers In this exercise students learn about the skills as follows: 1. What do you notice about the number of zeros at the end of a number and the number of zeros at the end of its square? Will this always happen? Can we say that squares can only have an even number of zeros at the end? 2. There are 2n non perfect square numbers between the square of the numbers n and n+1" 3. We see that the sum of the first n odd numbers is n^2. Alternatively, every square is a sum of successive odd numbers starting from 1. 4. Also, we can find out whether a number is a perfect square by successively subtracting odd numbers. Khan Academy exercise https://www.khanacademy.org/math/revision-term-1-ka-math-class-8/x36423c781f0794f3:week-2/x36423c781f0794f3:squares-and-square-roots/e/find-unit-s-place-digit-of-the-square 2025-02-10T11:15:42.866710478Z Find unit's place digit of the square This exercise is curated for new ncert and the problems are taken from 5.1 since here we need do-4 Devashish Phadnis exercise https://www.khanacademy.org/math/revision-term-1-ka-math-class-8/x36423c781f0794f3:week-2/x36423c781f0794f3:squares-and-square-roots/v/patterns-involving-square-numbers 2025-04-15T10:15:04.899062092Z Patterns involving square numbers Dive into a fascinating journey where simple block arrangements reveal amazing number patterns! In this video, we start by showcasing two arrangements that form triangular numbers—one arrangement gives us 3, and the other 6. Then, we present a square arrangement (9) and demonstrate how combining these triangular patterns leads to a perfect square. Watch as we: • Visualize triangular numbers (1, 3, 6, 10) and explain how each number is the sum of consecutive natural numbers. • Show the step-by-step process of how triangular numbers add up to form square numbers, from 1 and 1+3 = 4 to larger squares like 16 and even 81. Created by Sarath Penumuru Devashish Phadnis video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Patterns involving square numbers Dive into a fascinating journey where simple block arrangements reveal amazing number patterns! In this video, we start by showcasing two arrangements that form triangular numbers—one arrangement gives us 3, and the other 6. Then, we present a square arrangement (9) and demonstrate how combining these triangular patterns leads to a perfect square. Watch as we: • Visualize triangular numbers (1, 3, 6, 10) and explain how each number is the sum of consecutive natural numbers. • Show the step-by-step process of how triangular numbers add up to form square numbers, from 1 and 1+3 = 4 to larger squares like 16 and even 81. Created by Sarath Penumuru https://cdn.kastatic.org/ka-youtube-converted/zEAiVLqZ8eg.mp4/zEAiVLqZ8eg.mp4 337 Square Numbers https://www.khanacademy.org/math/class-6-ncf/x04ca845a9a148c80:patterns-in-mathematics-india/x04ca845a9a148c80:visualising-number-sequences-india/v/why-36-is-a-triangular-square-number 2025-06-08T17:08:59.076161332Z Why 36 is a triangular square number In this fun math exploration, we dive into the fascinating world of triangular and square numbers. Using square blocks, we demonstrate how triangular arrangements can sometimes be rearranged into perfect squares. Through visual examples, we discover that 36 is both a triangular number and a square number! This hands-on approach makes abstract mathematical concepts concrete and easy to understand for you. Sarath Penumuru video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Why 36 is a triangular square number In this fun math exploration, we dive into the fascinating world of triangular and square numbers. Using square blocks, we demonstrate how triangular arrangements can sometimes be rearranged into perfect squares. Through visual examples, we discover that 36 is both a triangular number and a square number! This hands-on approach makes abstract mathematical concepts concrete and easy to understand for you. https://cdn.kastatic.org/ka-youtube-converted/ucjPtCWMYVk.mp4/ucjPtCWMYVk.mp4 377 Square Numbers https://www.khanacademy.org/math/class-6-ncf/x04ca845a9a148c80:patterns-in-mathematics-india/x04ca845a9a148c80:visualising-number-sequences-india/e/adding-triangular-numbers 2025-02-10T11:15:42.866710478Z Adding triangular numbers This exercise is about adding triangular numbers Devashish Phadnis exercise https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:rational-exponents-radicals/x2f8bb11595b61c86:radicals/v/introduction-to-square-roots 2021-06-21T15:29:06Z Intro to square roots Learn about the square root symbol (the principal root) and what it means to find a square root. Also learn how to solve simple square root equations. video https://cdn.kastatic.org/googleusercontent/9zEFqvfBXSC8o2N7kHZL7cdgacCFBCPUVG9i-IPqWPENAv2MOUqUB7r4mlnfeOWvqAR_8OKE6_EZGCcoGePk9aC4 Intro to square roots Learn about the square root symbol (the principal root) and what it means to find a square root. Also learn how to solve simple square root equations. https://cdn.kastatic.org/ka-youtube-converted/mbc3_e5lWw0.mp4/mbc3_e5lWw0.mp4 324 Square Numbers https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:rational-exponents-radicals/x2f8bb11595b61c86:radicals/v/understanding-square-roots 2021-02-07T17:14:00Z Understanding square roots Learn how square root means what number multiplied by itself will result in the given number. Sal Khan video https://cdn.kastatic.org/googleusercontent/D_N0eBXbzJQwt5idHen9LQH5kogzYdTBihXN_04nWQ7JrEOU40HrHhac4TDFp_MhoVRDCYmpIPxhWHeKHHCrRKo Understanding square roots Learn how square root means what number multiplied by itself will result in the given number. https://cdn.kastatic.org/ka-youtube-converted/ROIfbUQrSY4.mp4/ROIfbUQrSY4.mp4 81 Square Numbers https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:rational-exponents-radicals/x2f8bb11595b61c86:radicals/e/square_roots 2025-02-10T11:15:42.866710478Z Square roots Practice finding the square root of a perfect square positive integer. Jeff Ruberg exercise https://www.khanacademy.org/math/od-math-class-8-new-book/x648dc020d7206462:a-square-and-a-cube/x648dc020d7206462:square-numbers/e/approximating-square-root 2026-03-22T06:53:37.482695608Z Approximating square root In this exercise students solve problems to learn about prime factorisation method of finding square root and skill of approximating square root Khan Academy exercise https://www.khanacademy.org/math/revision-term-1-ka-math-class-8/x36423c781f0794f3:week-2/x36423c781f0794f3:squares-and-square-roots/e/square-roots-using-prime-factorisation--advanced- 2025-02-10T11:15:42.866710478Z Square roots using prime factorisation (advanced) Square roots using prime factorisation (advanced) ashish exercise