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What is the units digit of the cube of 12 (i.e. of $1 2^{3}$ )?

Class 8Perfect CubesCubes and Roots

A2
B4
C6
D8

Step-by-Step Solution

The units digit of a cube depends only on the units digit of the number.

2^{3} = 8

, so

1 2^{3}

ends in 8

(1 2^{3} = 1728)

.

Answer: D) 8

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