Randomly generate addition, subtraction, multiplication and division questions within 5, 10, 20, 50, and 100

Select four arithmetic symbols and difficulty coefficient

The generated questions are as follows:

5 + 0 = 2 + 2 = 4 + 1 =
4 + 1 = 4 + 1 = 2 + 2 =
3 + 1 = 3 + 1 = 1 + 3 =
1 + 3 = 5 + 0 = 5 + 0 =
5 + 0 = 5 + 0 = 2 + 2 =
4 + 1 = 1 + 1 = 4 + 1 =
2 + 2 = 5 + 0 = 3 + 2 =
5 + 0 = 5 + 0 = 5 + 0 =
5 + 0 = 2 + 1 = 2 + 1 =
5 + 0 = 2 + 1 = 4 + 1 =
1 + 2 = 3 + 2 = 2 + 3 =
3 + 2 = 5 + 0 = 4 + 1 =
1 + 4 = 2 + 2 = 4 + 1 =
3 + 2 = 4 + 1 = 2 + 3 =
3 + 2 = 4 + 1 = 1 + 1 =
2 + 1 = 3 + 2 = 1 + 4 =
5 + 0 = 3 + 2 = 2 + 1 =
5 + 0 = 2 + 3 = 3 + 1 =
4 + 1 = 2 + 1 = 5 + 0 =
2 + 1 = 4 + 1 = 3 + 1 =