Answers

2014-07-24T17:46:12+05:30
 Square root-
Last digits for the square of 1 and 9 are 1
Last digits for the square of 2 and 8 are 4
"        "      "     "      "      "  3 and 7 are 9
"        "       "      "      "      " 4 and 6 are 6
Cube root-
1-1
2-8
3-7
4-4
5-5
6-6
7-3
8-2
9 -9

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Please mark my answer best if this was helpful
2014-07-24T20:08:20+05:30
You have to see the last digit of the no.
Square root-
1 & 9 - 1
 2 & 8 - 4
3 & 7 - 9
 4 & 6 - 6
Cube root-
1 - 1
2 - 8
3 - 7
4 - 4
5 - 5
6 - 6
7 - 3
8 - 2
9 - 9
this will give you idea about the last digit of the sq root or cube root
dont worry if you cant remember them they are the unit digit of the sq or cube of the same no.
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