Mathles

Math Puzzle - Arrange the numbers in the grid so that all expressions resolved correctly.

3 types of puzzles:
A - in the grid are numbers in the range from 1 to 5 and can be repeated;
B - in the grid are numbers in the range from 1 to 9 and are not repeated;
S - number of the grid are in the range from 1 to 50 and are not repeated;