Find the number of different 4-leter words, with or without meaning, that can be formed from the letters of the word  NUMBER.

Explanation

To find the number of different 4-letter words that can be formed from the letters of the word "NUMBER," we can follow these steps:

### Step 1: Identify the letters in the word "NUMBER"
The letters in the word "NUMBER" are: N, U, M, B, E, R. There are a total of 6 distinct letters.

### Step 2: Select 4 letters from the 6 distinct letters
We need to choose 4 letters from the 6 available letters. The number of ways to choose 4 letters from 6 is given by the combination formula:

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