How many three digit numbers are there with no digit repeated?

Explanation

To find the total number of three-digit numbers with no repeated digits, we can follow these steps:

### Step 1: Determine the choices for the first digit
The first digit of a three-digit number cannot be 0 (as it would make it a two-digit number). Therefore, the choices for the first digit are from 1 to 9. This gives us 9 options.

**Hint:** Remember that the first digit cannot be zero in a three-digit number.

### Step 2: Determine the choices for the second digit
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