Use 4, 5, 0 and 8 to form the largest decimal with two decimal places. '0' cannot be omitted.

To form the largest decimal with two decimal places using the numbers 4, 5, 0, and 8, follow these steps:

1. Identify the largest number among the four. This will be the first digit of your decimal. In this case, the largest number is 8.

2. Identify the next largest number. This will be the second digit of your decimal. In this case, the next largest number is 5.

3. The third digit of your decimal will be the decimal point.

4. Identify the next largest number. This will be the first digit after the decimal point. In this case, the next largest number is 4.

5. The last number left will be the last digit of your decimal. In this case, the last number left is 0.

So, the largest decimal with two decimal places that you can form with the numbers 4, 5, 0, and 8 is 85.40.