The cube root of a number is another number that, when multiplied three times, makes the first number.
To find the unit place of the cube root always remember the following points:
• If the last digit of a cube root is 8 then the unit digit will be 2.
• If the last digit of a cube root is 2 then the unit digit will be 8.
• If the last digit of a cube root is 3 then the unit digit will be 7.
• If the last digit of a cube root is 7 then the unit digit will be 3.
• If the last digit of a cube root is other than 2, 3, 7 and 8 then put the same number as the unit digit.
Cubes from 1 to 30
The cube roots of numbers 1 to 30 are mentioned below:
1 x 1 x 1= 1
2 x 2 x 2 =8
3 x 3 x 3 =27
4 x 4 x 4 =64
5 x 5 x 5 =125
6 x 6 x 6 =216
7 x 7 x 7 =343
8 x 8 x 8 =512
9 x 9 x 9 =729
10 x 10 x 10 =1,000
11 x 11 x 11 =1,331
12 x 12 x 12 =1,728
13 x 13 x 13 =2,197
14 x 14 x 14 =2,744
15 x 15 x 15 =3,375
16 x 16 x 16 =4,096
17 x 17 x 17 =4,913
18 x 18 x 18 =5,832
19 x 19 x19 =6,895
Also read = NCERT Solutions Class 7 Social Science Geography Air
20 x 20 x20 =8,000
21 x 21 x 21 =9,261
22 x 22 x 22 =10,648
23 x 23 x 23 =12,167
24 x 24 x 24 =13,824
25 x 25 x 25 =15,625
26 x 26 x 26 =17,576
27 x 27 x 27 =19,683
28 x 28 x 28 =21,952
29 x 29 x 29 =24,389
30 x 30 x 30 =27,000
