finish up loops and logic, add more about math to intro

Author: ProbablyComputingSquid

Intro_To_Python.ipynb

@@ -155,7 +155,9 @@
    "execution_count": null,
    "source": [
     "his_name = \"John\"\n",
-    "print(\"His name is \" + his_name)"
+    "print(\"His name is \" + his_name)\n",
+    "my_name # complete the variable declaration here!\n",
+    "print() # now print out your name"
    ],
    "id": "386473072062d87b"
   },
@@ -171,15 +173,20 @@
   {
    "metadata": {},
    "cell_type": "markdown",
-   "source": "",
+   "source": "Just as a note, all of these exercises are completely optional, but they are here for _your_ sake. I'll never know if you skip one, but you're only harming yourself.",
    "id": "9e23604b2828ea85"
   },
   {
    "metadata": {},
    "cell_type": "code",
    "outputs": [],
    "execution_count": null,
-   "source": "## Your turn :3",
+   "source": [
+    "## Your turn :3\n",
+    "# Declare the variables here\n",
+    "\n",
+    "# Print theme all out in a single print statement"
+   ],
    "id": "7a37bd8062631e39"
   },
   {
@@ -289,6 +296,82 @@
     "print(\"Comment out this line!\")"
    ],
    "id": "b18a664c7e3bdf06"
+  },
+  {
+   "metadata": {},
+   "cell_type": "code",
+   "outputs": [],
+   "execution_count": null,
+   "source": "",
+   "id": "f7c25dd39f9be227"
+  },
+  {
+   "metadata": {},
+   "cell_type": "markdown",
+   "source": [
+    "## Math in Python\n",
+    "Python can be used as a calculator, and it supports all the basic arithmetic operations like addition, subtraction, multiplication, and division. Here are some examples:"
+   ],
+   "id": "7a7153dec817dae3"
+  },
+  {
+   "metadata": {},
+   "cell_type": "code",
+   "outputs": [],
+   "execution_count": null,
+   "source": [
+    "print(5 + 3)  # Addition\n",
+    "print(5 - 3)  # Subtraction\n",
+    "print(5 * 3)  # Multiplication\n",
+    "print(5 / 3)  # Division\n",
+    "print(5 // 3) # Floor Division\n",
+    "print(5 % 3)  # Modulus\n",
+    "print(5 ** 3) # Exponentiation\n",
+    "print(5 + 3 * 2)  # Order of operations"
+   ],
+   "id": "a997cca30aa3c69e"
+  },
+  {
+   "metadata": {},
+   "cell_type": "markdown",
+   "source": [
+    "Python also has shorthand operators that allow you to perform an operation and assign the result to a variable in a single step. For example, instead of writing `x = x + 5`, you can write `x += 5`. This shorthand also works with strings, where applicable.\n",
+    "Here are some examples of shorthand operators:"
+   ],
+   "id": "2ec0b39771d28739"
+  },
+  {
+   "metadata": {},
+   "cell_type": "code",
+   "outputs": [],
+   "execution_count": null,
+   "source": [
+    "x = 6\n",
+    "x += 3  # Equivalent to x = x + 3\n",
+    "print(x)\n",
+    "y = \"Hello\"\n",
+    "y += \" World!\"  # Equivalent to y = y + \" World!\"\n",
+    "print(y)\n",
+    "x *= 2  # Equivalent to x = x * 2\n",
+    "print(x)"
+   ],
+   "id": "231580ff6f38832b"
+  },
+  {
+   "metadata": {},
+   "cell_type": "markdown",
+   "source": [
+    "## Practice - Ask a user for their info, and format it\n",
+    "\n",
+    "Let's put all of this together and create a simple \"Registration\" program that asks the user for their name, age, and password, and then prints out a formatted sentence with that information. You can use the `input()` function to get input from the user, and then use string formatting to create the final output. We have little under our toolbelt yet, so let's keep it simple.  "
+   ],
+   "id": "3230f4039fd83fb7"
+  },
+  {
+   "metadata": {},
+   "cell_type": "markdown",
+   "source": "",
+   "id": "4f9f1e949d0978a1"
   }
  ],
  "metadata": {