| 0 | 2 | |||||||
| x | 3 | |||||||
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In this multiplication problem, all of the digits 0 through 9 have been used exactly once. Can you fill in the blanks to make it true?
This problem becomes a lot easier if you notice that 2 x 3__ gives you the two right-hand digits of the product, and __00 x 3__ gives you the three left-hand digits. Then it’s not too hard to arrive at the solution:
402 x 39 = 15678