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 Boxing Day (Posted on 2005-09-28)
Fill in each of the boxes with the numbers 1 to 9 so that the three horizontal equations are true.

Each number is used once; no repetition is allowed.

The calculations are done from left to right (i.e., 7-2x3=15, not 1) and may involve only positive numbers (so 5-3-7=-5 is not allowed).

```                               _     _     _     _
_     _     _     _     _    | | - | | x | | = | |
| | x | | x | | = | | + | | + |_| + |_| + | | + |_|
|_| - |_| x |_| = |_| - |_|             - |_|
```

 See The Solution Submitted by Lisa Rating: 4.0000 (3 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
 re: allternate solution | Comment 3 of 6 |
(In reply to allternate solution by zecougar)

4 8 1 5 6 9 7 3 6
results in the bottom equation being

4 - 8 * 1 = 5 - 6 - 3 = -4

That's disallowed by the rule to "involve only positive numbers (so 5-3-7=-5 is not allowed)."

 Posted by Charlie on 2005-09-29 13:24:38

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