PLAYING RULES

The goal is to group numbers that form operations:
- One operation: 6 x 9 = 54 (level A)
- Two operations: 72: 9 = 8 + 39 = 47 (level B)
- Three operations: 66 - 21 = 45: 3 = 15 x 5 = 75 (level C)
We must also find out which operation it is (addition, subtraction, multiplication
or division).
Each number is used only once for a single operation.
It is sufficient to surround the operations found so as to distinguish them.
(see grid example below)

We calculate from top to bottom, from bottom to top, from left to right, from right to left or diagonally. One can calculate, in the choice, in one direction or in the other:
(Example: 6 x 9 = 54 or 54: 9 = 6)

The numbers that form an operation are always close to each other.

In the white boxes, you have to guess the missing numbers, it increases the level of difficulty. The operation concerned will necessarily be a multiplication or a division.

It is advisable to fill in the grids, in pencil, to correct any errors.
In solutions, each operation is represented by a different color

Example of a level B grid filled in pencil