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Ayushree
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Asked: 2025-08-01T07:28:19+00:00 In:

Write 5 numbers such that you can determine by looking at their units digit that they are not squares.

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Here are five such numbers: 73, 88, 102, 57 and 69. All these numbers end with 3, 8, 2, 7 or 9. Except 9, the others never appear as the unit digit of square numbers, so they are not squares.

Class 8 Mathematics Chapter 1 A Square and A Cube question answer

Class 8 NCERT Ganita Prakash Chapter 1 A Square and A Cube solutions

5 numbers such that you can determine by looking at their unitsclass 8 maths a square and a cube chapter 1 mcqclass 8 maths a square and a cube extra questions @tiwari_academy
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    1. The five numbers that are clearly not squares based on their units digits are: 73 (ends in 3), 88 (ends in 8), 102 (ends in 2), 57 (ends in 7) and 69. While 9 can be the unit digit of a square, all the others—2, 3, 7 and 8—cannot be. Hence, these numbers cannot be perfect squares and we can confidently identify them as non-squares using this rule.

       

      For more NCERT Solutions for Class 8 Mathematics Ganita Prakash Chapter 1 A Square and A Cube Extra Questions & Answer:

      https://www.tiwariacademy.com/ncert-solutions/class-8/maths/ganita-prakash-chapter-1/

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