### Discussion :: Square Root and Cube Root - General Questions (Q.No.14)

Pawan Goyal said: (Oct 26, 2010) | |

hw this could be possible that a number ending with is not a perfect square |

Kala said: (Aug 13, 2011) | |

Please explain. |

M.V.Krishna/Palvancha said: (Sep 11, 2011) | |

Hello pawan and kala. The two digit numbers are from 10 to 99. The numbers with 8 in units place are. 18, 28, 38, 48, 58, 68, 78, 88, 98. These numbers do not have a perfect square (s*s). So answer is none of these. Hope you understand. |

Veena said: (Nov 9, 2012) | |

Number ending with 0, 1, 4, 5, 6, 9 are the perfect squares rather than these are not perfect squares. |

Aarti said: (Feb 5, 2015) | |

Number ending with 8 is not a perfect square. |

Balu said: (Jul 5, 2015) | |

I can't understand so please explain again. |

Abi said: (Feb 10, 2016) | |

2 = 4. 3 = 9. 4 = 16. 5 = 25. 7 = 49. 9 = 81. 10 = 100. As you can see all squares have 0, 1, 4, 5, 6, 9 in units place. So if we have 2, 3, 7, 8 in units place it square root is not perfect. |

Jayram said: (Jul 19, 2016) | |

If the units place is 1, 2, 3, 4, 5, 6, 7, 8, 9. Square of all number = 1, 4, 9, 16, 25, 36, 49, 64, 81. Then, take unit value for all squares =1, 4, 9, 6, 5, 6, 9, 4, 1. And approx is 2, 3, 7, 8. |

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