Cubes of all odd numbers are ______.

odd

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even

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zero

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irrational

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Solution

The correct option is A odd
Unit digit of cubes of odd numbers is odd.
example:
$1^{3} = 1 3^{3} = 27 5^{3} = 125 7^{3} = 343...$
So, cubes of odd numbers is always odd.

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Cubes of all odd numbers are ______.

The correct option is A oddUnit digit of cubes of odd numbers is odd. example: 13=133=2753=12573=343... So, cubes of odd numbers is always odd.

The correct option is A odd
Unit digit of cubes of odd numbers is odd.
example:
$1^{3} = 1 3^{3} = 27 5^{3} = 125 7^{3} = 343...$
So, cubes of odd numbers is always odd.