Write the unit digit of the cube of each of the following numbers: 31,109,388,833,4276,5922,77774,44447, 125125125

Explanation

(i)`31`
As the unit digit of this number is `1`. Then , the unit digit of it's cube will be:
`1^3=1`.

(ii)`109`
As the unit digit of this number is `9`. Then , the unit digit of it's cube will be:
`9^3=729`, i.e., `9`.

(iii)`388`
As the unit digit of this number is `8`. Then , the unit digit of it's cube will be:
`8^3=512`, i.e., `2`.

(iv)`833`
As the unit digit of this number is `3`. Then , the unit digit of it's cube will be:
`3^3=9`.

(v)`4276`
As the unit digit of this number is `6`. Then , the unit digit of it's cube will be:
`6^3=216`, i.e., `6`

(vi)`5922`
As the unit digit of this number is `2`. Then , the unit digit of it's cube will be:
`2^3=8`.

(vii)`77774`
As the unit digit of this number is `4`. Then , the unit digit of it's cube will be:
`4^3=64`, i.e., `4`.

(viii)`44447`
As the unit digit of this number is `7`. Then , the unit digit of it's cube will be:
`7^3=343`, i.e, `3`.

(ix)`125125125`
As the unit digit of this number is `5`. Then , the unit digit of it's cube will be:
`5^3=125`, i.e.,`5` .