If a number has 1 and 9 in unit place then it's square end with digit
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Answered by
46
If a number has 1 and 9 in unit place then it's square ends with digit 1.
For example:
1.)(11)²=121
2.)(21)²=441
3.)(19)=361
4.)(29)²=841
For example:
1.)(11)²=121
2.)(21)²=441
3.)(19)=361
4.)(29)²=841
Answered by
22
If a number has 1 and 9 in unit place then its square end with digit 1 ..
Hope it helps ..
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