Mathematical Expressions

David Foster

5 min read

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Study Guide Overview

This study guide covers algorithms and their core components: sequencing, selection, and iteration. It explains how expressions are evaluated using arithmetic operators and the order of operations (PEMDAS/PEMMDAS). The guide also includes practice questions and exam tips focusing on algorithm identification, sequencing, and expression evaluation using the MOD operator.

#AP Computer Science Principles: The Night Before 🚀

Hey! Let's get you prepped and confident for tomorrow. We'll make sure everything clicks, and you'll be ready to rock this exam. Let's dive in!

#Big Idea 3: Algorithms and Programming

#What's an Algorithm?

An algorithm is simply a set of instructions to solve a problem or complete a task. Think of it as the logic behind a process. It's like the steps you'd take to make a cake, while the program is the recipe itself. 🍰

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Key Concept

Algorithms can be expressed in different ways: code, pseudocode, natural language, or diagrams. Computers follow your instructions exactly, so clarity is key!

#Building Blocks: Sequencing, Selection, and Iteration

Every algorithm is built using three core concepts:

Sequencing: Steps are executed in the order they appear. It's like following a recipe from top to bottom.

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Question 1 of 8

What will be the output of the following code snippet? 💻

first_number = 10
second_number = 3
sum_value = first_number + second_number
print(sum_value)