Finding Cube Root Short cuts:
Finding Cube Root is similar to finding square root. in square root we consider last two digits but here we consider last three digits and remaining steps are same. in square root the rest of last two digits is calculated to nearest square but in cube root we will take nearest cube. and the remaining steps are same.
Examples:
∛ 729
Cube of
|
unit digit
|
|
0
|
0
|
0
|
1
|
1
|
1
|
2
|
8
|
8
|
3
|
27
|
7
|
4
|
64
|
4
|
5
|
125
|
5
|
6
|
216
|
6
|
7
|
343
|
3
|
8
|
512
|
2
|
9
|
729
|
9
|
∛ 729
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