Answer: The required number of arrangements is 1000.
Step-by-step explanation: We are given to find the number of arrangements of 3 digits that can be formed from the digits 0 to 9.
Since we are talking about the 3 digit arrangements, not the 3 digit numbers,
so we have 10 options 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 for each of the three places in the arrangement.
Therefore, the number of 3 digit arrangements that can be formed is given by
Thus, the required number of arrangements is 1000.