More Dicey Operations Ayah

The numbers I was given were 6,7, and 6. My strategy was to try all possible combinations and see which one was closest to 100, the target. First, I tried 67 x 6, which gave me 402. Then I tried 76 x 6, which equaled 456. Finally, I tried 66 x 7, which got me 462. I then figured out that 402 (67 x 6) was the closest to 100.