Math Puzzle: Multiplication Boxes (x7 to x12)

Multiply each number by the one in the middle and write the answer next to the number that was multiplied. The first one is done for you.

21 3 11 8 10 1 x 1 7 x 7 x 2 6 5 3 x 9 12 7 4 0	7 11 3 10 12 x 1 8 x 9 x 2 10 4 5 x 9 6 7 2 0
12 6 8 0 1 x 9 3 x 10 x 2 5 11 7 x 1 3 7 4 10	10 8 11 3 7 x 12 1 x 12 x 7 3 4 6 x 0 1 2 5 9
8 7 3 10 1 x 1 2 x 11 x 6 7 5 3 x 12 9 11 4 0	4 5 8 10 9 x 6 7 x 8 x 2 1 11 3 x 1 12 0 3 7