1. Choose an operation
2. Choose numbers from 0 to 12
3. Go!
Add
Subtract
Multiply
Divide
Random operator
High number:
1
2
3
4
5
6
7
8
9
10
11
12
Low number:
0
1
2
3
4
5
6
7
8
9
10
11
=
seconds remaining
answered correctly
answered incorrectly