Write an addition equation must have one two and a three digit addend and use all of these digits 662-228-8000

To create an addition equation using the digits 6, 2, 2, 2, 8, 8, 0, 0, 0, we need to ensure that one addend is a two-digit number and the other addend is a three-digit number.

Let's assign the two-digit number to be 62 and the three-digit number to be 228.

The addition equation using all of these digits is:
62 + 228 = 290