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If you need to square a 2-digit number ending in 5, multiply the first digit by itself plus 1, and put 25 on the end. That’s all!

If you need to square a 2-digit number ending in 5, multiply the first digit by itself plus 1, and put 25 on the end. That’s all!

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1 Answers

Sourabh Singh IIT Patna
askIITians Faculty 2104 Points
9 years ago
hii

the question is not proper. Resubmit the question properly and we will get back to you.

Thanks. . . . . . .






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