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Square and Cube root shortcut method

Square and Cube root shortcut method and tricks to solve square root and cube root problems

 

 

Remember at least square and cube of 1-25 number so that it will be easy to calculate and find out answers very quickly.

Number (n) Square (n2)  Cube (n3)
 1  12 = 1 13 = 1
2  4 8
3  9 27
4 16 64
5 25 125
6 36 216
7 49 343
8 64 512
9 81 729
10 100 1000
11 121 1331
12 144 1728
13 169 2197
14 196 2744
15 225 3375
16 256 4096
17 289 4913
18 324 5832
19 361 6859
20 400 8000
21 441 9261
22 484 10648
23 529 12167
24 576 13824
25 625  15625

Tricks:

n2 = x

(n+1) = x +n+n+1  = x +2n+1

Updated: December 15, 2016 — 4:23 am

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