Instructions:
Fill the multiplication square so that the center fields are the results of the multiplication of the fields in the corners, which are adjacent central field.
Example
45
X
81
2
9
Solution
5
45
9
10
X
81
2
18
9
5 . 9 = 45 | 9 . 9 = 81 | 2 . 9 = 18 | 5 . 2 = 10