If a number ends with 4 zeroes then its square ends with ____ zeroes.

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Solution

The correct option is C 8
If a number ends with n zeroes, its square ends with 2n zeroes.
So, if a number ends with 4 zeroes then its square ends with $2 \times 4 = 8 z e r o e s .$
Ex: square of 10000 is 100000000.

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