When it comes to tackling the Digital SAT, one of the most challenging question types you’ll face is the main idea question. These questions require a deep, comprehensive understanding of the passage, making them significantly harder than the average vocabulary or grammar question. In this post, we’ll break down why main idea questions are tricky and how you can develop a strategy to ace them.
Why Main Idea Questions Are So Difficult
Main idea questions demand that you summarize the passage’s core message or purpose. Unlike grammar or vocabulary questions that often have straightforward answers, main idea questions require you to interpret the entire passage to arrive at the right conclusion. Here’s why they take more time:
- They require a comprehensive understanding of the passage. You need to digest the text’s message or purpose to arrive at the correct answer.
- They require precise thinking. The Digital SAT often includes answers that are half-right, half-wrong, so you need to be cautious and exact in your judgment.
Key Tips for Main Idea Questions
Before diving into specific strategies, keep this general advice in mind: while these questions may feel slow, it’s okay. The extra time you spend here will pay off when you breeze through simpler questions later in the section. Let’s get into the strategy now.
1. Read the Question First
Always start by reading the question. This will help you understand the category of the question you’re dealing with—whether it’s asking for the main idea, a vocabulary definition, or a claim. Knowing what to expect keeps you mentally prepared as you read the passage. For main idea questions, you’re looking to summarize the text’s core message.
2. Highlight Key Points
As you read the passage, highlight key sentences or clauses that relate to the main idea. Digital SAT has a built-in highlight tool that can help with this, and you should practice using it effectively. Students who actively engage with the text through highlighting perform better on comprehension questions. This skill will develop over time, so practice makes perfect.

3. Make a Prediction
After reading, take a moment to predict what you think the main idea is. If you can, write it down—whether it’s in your head or using the annotation tool. This helps focus your thinking and keeps you aligned with the passage’s central theme when reviewing the answer choices.
4. Compare Your Prediction to the Answer Choices
Once you have a solid prediction, review the answer choices and pick the one that matches your understanding the closest. Keep in mind:
- Be precise. Look for subtle differences in wording that could change the entire meaning of an answer.
- Half-right, half-wrong answers are traps. Sometimes, an answer starts well but diverges in the second half. If you feel like you’re forcing it to make sense, it’s likely wrong.
- Eliminate misleading choices. If an answer doesn’t align perfectly with your prediction, toss it out.
Main Idea Example Walkthrough
Let’s see how this strategy works in action. Here’s an excerpt from The Great Gatsby:
“He smiled understandingly—much more than understandingly. It was one of those rare smiles with a quality of eternal reassurance in it… It understood you as far as you wanted to be understood, believed in you as you would like to believe in yourself…”
The main point of this passage is that Jay Gatsby’s smile had a unique quality that made others feel understood and reassured.
Question: What is the main idea of the passage?
Answer Choices:
- A. Gatsby’s smile had an exceptional quality that makes others uneasy.
- B. Gatsby smiles frequently and easily understands others.
- C. Gatsby’s smile conveys a deep understanding and belief in others.
- D. Gatsby’s smile is often misunderstood by others.
Step 1: Read the question and passage.
Step 2: Highlight key points—Gatsby’s smile was described as reassuring and understanding.
Step 3: Predict the main idea: Gatsby’s smile makes people feel understood and confident.
Step 4: Review the answer choices. Choice C, “Gatsby’s smile conveys a deep understanding and belief in others,” matches our prediction perfectly, while the others include wrong details.
Correct answer: C.
Final Thoughts
The best way to master main idea questions on the Digital SAT is to practice. Strategies are only as good as their implementation, so as you prepare, try out these techniques on practice tests. Over time, you’ll notice that your comprehension improves, and you’ll tackle these questions with more confidence and precision.
Stay tuned for more Digital SAT strategies, and don’t forget to practice! Good luck with your preparation!