Find the square of 25.(a) 625(b) 525(c) 635(d) 615I have been asked this question by my college director while I was bunking the class.This interesting question is from Finding the Square of a Number topic in division Squares and Square Roots of Mathematics – Class 8

Find the square of 25.(a) 625(b) 525(c) 635(d) 615I have been asked th

1.	Find the square of 25.(a) 625(b) 525(c) 635(d) 615I have been asked this question by my college director while I was bunking the class.This interesting question is from Finding the Square of a Number topic in division Squares and Square Roots of Mathematics – Class 8
Answer» The correct answer is (a) 625 Easiest explanation: There is a beautiful pattern followed by all the numbers ENDING with 5. We can get the square of any number ending with 5 WITHOUT actually calculating it. All the numbers ending with 5 shows 25 at the end of their squares, and the other places can be filled by MULTIPLYING the next CONSECUTIVE number. For EXAMPLE: 25^2 = (2×3)25 i.e.625 (the step shown is just for understanding).

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