diff --git a/lab-python-lambda-map-reduce-filter.ipynb b/lab-python-lambda-map-reduce-filter.ipynb
index 96c9781..fdd66b8 100644
--- a/lab-python-lambda-map-reduce-filter.ipynb
+++ b/lab-python-lambda-map-reduce-filter.ipynb
@@ -94,12 +94,22 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "id": "0781335d-39cf-403d-b86a-ca908a09fe55",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "25\n"
+     ]
+    }
+   ],
    "source": [
-    "# your code goes here"
+    "# your code goes here\n",
+    "cuadrado = lambda x: x**2\n",
+    "print(cuadrado(5))  # 25\n"
    ]
   },
   {
@@ -124,12 +134,23 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 2,
    "id": "25073469-7258-4fc6-b0a0-ef8ea57688fe",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[1, 4, 9, 16]\n"
+     ]
+    }
+   ],
    "source": [
-    "# your code goes here"
+    "# your code goes here\n",
+    "numeros = [1, 2, 3, 4]\n",
+    "cuadrados = list(map(lambda x: x**2, numeros))\n",
+    "print(cuadrados)  # [1, 4, 9, 16]\n"
    ]
   },
   {
@@ -169,12 +190,22 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 3,
    "id": "2f253b7e-5300-4819-b38f-9fc090554f51",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[2, 4]\n"
+     ]
+    }
+   ],
    "source": [
-    "# your code goes here"
+    "# your code goes here\n",
+    "pares = list(filter(lambda x: x % 2 == 0, numeros))\n",
+    "print(pares)  # [2, 4]\n"
    ]
   },
   {
@@ -209,12 +240,23 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 4,
    "id": "0906a9b0-d567-4786-96f2-5755611b885e",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "10\n"
+     ]
+    }
+   ],
    "source": [
-    "# your code goes here\n"
+    "# your code goes here\n",
+    "from functools import reduce\n",
+    "suma = reduce(lambda a, b: a + b, numeros)\n",
+    "print(suma)  # 10\n"
    ]
   },
   {
@@ -243,14 +285,36 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 5,
    "id": "6284dbd3-e117-411e-8087-352be6deaed4",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Balances negativos: [-26.25, -10.5]\n",
+      "Total de balances negativos: -36.75\n"
+     ]
+    }
+   ],
    "source": [
     "from functools import reduce\n",
     "\n",
-    "# your code goes here"
+    "# your code goes here\n",
+    "from functools import reduce\n",
+    "\n",
+    "# Ejemplo de balances después de aplicar interés\n",
+    "balances = [105.0, 52.5, -26.25, 1050.0, -10.5]\n",
+    "\n",
+    "# Filtrar los balances negativos\n",
+    "negative_balances = list(filter(lambda x: x < 0, balances))\n",
+    "\n",
+    "# Sumar el total de los negativos\n",
+    "total_negative = reduce(lambda a, b: a + b, negative_balances)\n",
+    "\n",
+    "print(\"Balances negativos:\", negative_balances)\n",
+    "print(\"Total de balances negativos:\", total_negative)\n"
    ]
   },
   {
@@ -273,10 +337,18 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 6,
    "id": "da2264b5-298e-4b45-99df-852b94e90d15",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Balances finales después de retiros: [650, 699, 275]\n"
+     ]
+    }
+   ],
    "source": [
     "accounts = [\n",
     "    {'balance': 1000, 'withdrawals': [100, 50, 200]},\n",
@@ -284,13 +356,38 @@
     "    {'balance': 500, 'withdrawals': [50, 100, 75]},\n",
     "]\n",
     "\n",
-    "# your code goes here\n"
+    "# your code goes here\n",
+    "# Lista de cuentas con saldo inicial y retiros\n",
+    "accounts = [\n",
+    "    {'balance': 1000, 'withdrawals': [100, 50, 200]},\n",
+    "    {'balance': 2000, 'withdrawals': [300, 1001]},\n",
+    "    {'balance': 500,  'withdrawals': [50, 100, 75]},\n",
+    "]\n",
+    "\n",
+    "# Función que calcula el saldo final después de retiros\n",
+    "def calculate_balance(account):\n",
+    "    remaining = account['balance'] - sum(account['withdrawals'])\n",
+    "    return remaining\n",
+    "\n",
+    "# Usamos map para aplicar la función a todas las cuentas\n",
+    "final_balances = list(map(calculate_balance, accounts))\n",
+    "\n",
+    "print(\"Balances finales después de retiros:\", final_balances)\n",
+    "\n"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "7ec2c11a",
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "base",
    "language": "python",
    "name": "python3"
   },
@@ -304,7 +401,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.12.7"
   }
  },
  "nbformat": 4,