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Find the square of a no. with its last digits 5? 1. Choose a no. with last digits 5 say 1225. 2.multiply the no. excluding 5(i.e. 122 in this case)by no.+1 (i.e. 123 here) so 122x123=15006. 3.write multiplied answer and write 25 nxt to it (1500625). Here you go.. this is ur answer..!!!!!


6 years ago

Sumit Majumdar
IIT Delhi
137 Points
							Dear student,You are correct. Let me discuss another one.a) Let the number be 175.b) Now if we exclude 5, we get: 17. So we need to multiply this with 18. Hence, we get: 1718=306.c) Thus the required square is equal to: 30625.Regards

6 years ago
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### Course Features

• 731 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions