What three-digit numbers can be written using only the numbers 0 and 3?

In three-digit numbers, which consist only of the digits 0 and 3, only the digit 3 can come in the first place, since the number cannot start from zero. In turn, the second and third places can be either 0 or 3.

Therefore, the number of three-digit numbers that can be made up of the indicated digits is:

1 * 2 * 2 = 4.

Now let’s list all the possible options:

1) 300;
2) 303;
3) 330;
4) 333.

Answer: i.e., from the digits 0 and 3, you can make 4 three-digit numbers – 300, 303, 330 and 333.