Let me explain this trick by taking examples

67^2 = [6^2][7^2]+2067 = 3649+840 = 4489

similarly

25^2 = [2^2][5^2]+2025 = 425+200 = 625

Take one more example

97^2 = [9^2][7^2]+2097 = 8149+1260 = 9409

Here [] is not an operation, it is only a separation between initial 2 and last 2 digits

Question

Let me explain this trick by taking examples

67^2 = [6^2][7^2]+20*6*7 = 3649+840 = 4489

similarly

25^2 = [2^2][5^2]+20*2*5 = 425+200 = 625

Take one more example

97^2 = [9^2][7^2]+20*9*7 = 8149+1260 = 9409

Here [] is not an operation, it is only a separation between initial 2 and last 2 digits

Sourabh Singh · Answer

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Let me explain this trick by taking examples 67^2 = [6^2][7^2]+2067 = 3649+840 = 4489 similarly 25^2 = [2^2][5^2]+2025 = 425+200 = 625 Take one more example 97^2 = [9^2][7^2]+2097 = 8149+1260 = 9409 Here [] is not an operation, it is only a separation between initial 2 and last 2 digits

Let me explain this trick by taking examples

67^2 = [6^2][7^2]+2067 = 3649+840 = 4489

similarly

25^2 = [2^2][5^2]+2025 = 425+200 = 625

Take one more example

97^2 = [9^2][7^2]+2097 = 8149+1260 = 9409

Here [] is not an operation, it is only a separation between initial 2 and last 2 digits

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Let me explain this trick by taking examples 67^2 = [6^2][7^2]+20*6*7 = 3649+840 = 4489 similarly 25^2 = [2^2][5^2]+20*2*5 = 425+200 = 625 Take one more example 97^2 = [9^2][7^2]+20*9*7 = 8149+1260 = 9409 Here [] is not an operation, it is only a separation between initial 2 and last 2 digits

Let me explain this trick by taking examples 67^2 = [6^2][7^2]+20*6*7 = 3649+840 = 4489 similarly 25^2 = [2^2][5^2]+20*2*5 = 425+200 = 625 Take one more example 97^2 = [9^2][7^2]+20*9*7 = 8149+1260 = 9409 Here [] is not an operation, it is only a separation between initial 2 and last 2 digits

1 Answers

Think You Can Provide A Better Answer ?

Other Related Questions on Discuss with colleagues and IITians

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Answer and earn gift vouchers

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Complete Self Study Package designed by Industry Leading Experts

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a Complete All-in-One Study package Fully Loaded inside a Tablet!

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Let me explain this trick by taking examples 67^2 = [6^2][7^2]+2067 = 3649+840 = 4489 similarly 25^2 = [2^2][5^2]+2025 = 425+200 = 625 Take one more example 97^2 = [9^2][7^2]+2097 = 8149+1260 = 9409 Here [] is not an operation, it is only a separation between initial 2 and last 2 digits

Let me explain this trick by taking examples

67^2 = [6^2][7^2]+2067 = 3649+840 = 4489

similarly

25^2 = [2^2][5^2]+2025 = 425+200 = 625

Take one more example

97^2 = [9^2][7^2]+2097 = 8149+1260 = 9409

Here [] is not an operation, it is only a separation between initial 2 and last 2 digits