diff --git a/task1.py b/task1.py
new file mode 100644
index 0000000..9c356b1
--- /dev/null
+++ b/task1.py
@@ -0,0 +1,35 @@
+class Matrix:
+    def __init__(self, matrix_list):
+        if isinstance(matrix_list, list):
+            for matrix_row in matrix_list:
+                if not isinstance(matrix_list, list):
+                    return 'Error'
+        else:
+            return 'Error'
+        self.matrix_list = matrix_list
+
+    def __str__(self):
+        for matrix_row in self.matrix_list:
+            for i in matrix_row:
+                print(i, end=' ')
+            print('')
+        return ''
+
+    def __add__(self, other):
+        result_list = []
+        for row_num, matrix_row in enumerate(self.matrix_list):
+            new_row = []
+            for i, num in enumerate(matrix_row):
+                new_row.append(num + other.matrix_list[row_num][i])
+            result_list.append(new_row)
+        # print(result_list)
+        return Matrix(result_list)
+
+
+
+matrix1 = [[1, 2, 3, 4], [5, 4, 3, 2], [4, 6, 7, 9]]
+matrix2 = [[1, 2, -3, -4], [5, -4, -3, 2], [2, 3, 1, 0]]
+
+new_matrix1 = Matrix(matrix1)
+new_matrix2 = Matrix(matrix2)
+print(new_matrix1 + new_matrix2)
diff --git a/task2.py b/task2.py
new file mode 100644
index 0000000..2449218
--- /dev/null
+++ b/task2.py
@@ -0,0 +1,42 @@
+from abc import ABC, abstractmethod
+
+class Clothes(ABC):
+
+    def __init__(self, name):
+        self.name = name
+
+    @abstractmethod
+    def material_count(self):
+        pass
+
+    def __str__(self):
+        return f'Общий расход по {self.name} = {self.material_count}'
+
+
+class Palto(Clothes):
+
+    def __init__(self, name, v):
+        Clothes.__init__(self, name)
+        self.v = v
+
+    @property
+    def material_count(self):
+        return self.v / 6.5 + 0.5
+
+
+class Costum(Clothes):
+
+    def __init__(self, name, h):
+        Clothes.__init__(self, name)
+        self.h = h
+
+    @property
+    def material_count(self):
+        return 2 * self.h + 0.3
+
+
+clother_1 = Palto('Пальто', 48)
+clother_2 = Costum('Костюм', 175)
+
+sum_materil = clother_1.material_count + clother_2.material_count
+print(sum_materil)
\ No newline at end of file
diff --git a/task3.py b/task3.py
new file mode 100644
index 0000000..e3e44a1
--- /dev/null
+++ b/task3.py
@@ -0,0 +1,42 @@
+class Element:
+
+    def __init__(self, cells):
+        if cells <= 0:
+            print('кол-во ячеек должно быть положительным числом!')
+            return False
+        self.cells = cells
+
+    def __add__(self, other):
+        return Element(self.cells + other.cells)
+
+    def __sub__(self, other):
+        if self.cells > other.cells:
+            return Element(self.cells - other.cells)
+        print('Недостаточно ячеек для вычитания')
+        return False;
+
+    def __mul__(self, other):
+        return Element(self.cells * other.cells)
+
+    def __truediv__(self, other):
+        if other.cells == 0:
+            print('Нельзя делить на пустую клетку')  # скорее всего это условие несработает никогда, потому что другие
+            # методы не генерируют пустые клетки, но пусть будет, вдруг измениться что-то в программе
+            return False
+        return Element(round(self.cells / other.cells, 0))
+
+    def make_order(self, row_len):
+        str_cells = ''
+        a = 0
+        while(a < self.cells):
+            str_cells += '*'
+            a += 1
+            if a % row_len == 0:
+                str_cells += '\n'
+        return str_cells
+
+
+element1 = Element(5)
+element2 = Element(3)
+element3 = element1 + element2
+print(element3.make_order(5))
\ No newline at end of file