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What Will Be the Unit Digit of the Squares of the Given Numbers? 81 - Mathematics

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Question

What will be the unit digit of the squares of the given numbers?

81

Solution

We know that if a number has its unit’s place digit as a, then its square will end with the unit digit of the multiplication a × a.

For 81:-

Since the given number has its unit’s place digit as 1, its square will end with the unit digit of the multiplication (1 ×1 = 1) i.e., 1

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APPEARS IN

 NCERT Solution for Mathematics Textbook for Class 8 (2018 (Latest))
Chapter 6: Squares and Square Roots
Ex. 6.1 | Q: 1.01 | Page no. 96
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What Will Be the Unit Digit of the Squares of the Given Numbers? 81 Concept: Properties of Square Numbers.
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