For each number at the top, find the equivalent expression in the grid. So if the number is 9, the expression could be 3*3, 3^2, 5+4, 12-(1+1+1), or infinitely more possibilities. Expressions can be top to bottom, left to right, or top-left to bottom-right.

There should only be one equivalent expression and it should follow standard order of operations. Each number correctly found is worth 100 points. Each guess, correct or incorrect, costs 5 points.

If you cannot find the answer, you can buy hints by clicking on a number from the top. For 30 points, you can get the number of characters in the expression. For 70 points, you can get the format of the expression with the digits hidden.

Try to have as many points as possible when you find all 10!