Answer:
If you count each box as 1, 2, 3, and 4, going left to right, it'd be 1, 3, 4, 2.
Step-by-step explanation:
10^0 * 10^1 - 1^10 = 9
10^0 * 10^1 * 1^10 = 10
10^0 + 10^1 * 1^10 = 11
10^0 + 10^1 + 1^10 = 12