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What Will Be the Unit Digit of the Squares of the Given Numbers? 799 - Mathematics

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

799

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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.

799:

Since the given number has its unit’s place digit as 9, its square will end with the unit digit of the multiplication (9 × 9 = 81) i.e., 1

Concept: Properties of Square Numbers
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APPEARS IN

NCERT Class 8 Maths
Chapter 6 Squares and Square Roots
Exercise 6.1 | Q 1.03 | Page 96

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