GRE Calculator: Tips for How to Use the GRE On-Screen Calculator

The GRE can be a difficult exam, but with the right preparation, you can reach your target score regardless of your mathematical background. One key element to achieving your score is using the GRE’s on-screen calculator correctly. While it might appear basic, this complementary tool can be a game-changer when used effectively.

This blog digs deep into everything you need to know about the GRE calculator, from its fundamental functions to its more advanced features. We’ll also provide valuable tips on using the calculator strategically to save precious time and ensure accuracy on your test day.

Can You Use a Calculator on the GRE?

Yes, you can use a calculator on the GRE. However, there are some important things to keep in mind. The GRE provides a basic on-screen calculator that you can access during the GRE quantitative reasoning section of the test. This means you won’t be able to bring your graphing calculator; you’ll be working with the provided one.

Should You Use the GRE On-Screen Calculator?

The GRE provides an on-screen calculator for the Quantitative Reasoning section, but it shouldn’t be your go-to option. Many problems on the GRE can actually be solved faster and with less risk of error using mental math or estimation. The on-screen calculator has a limited function set, and because it’s not your familiar device, using it can be cumbersome. It won’t magically solve a difficult problem, and entering numbers incorrectly can still lead you astray.

However, there are definitely situations where the calculator is essential. For instance, when dealing with complex calculations like compound interest or finding the hypotenuse of a right triangle with large side lengths, the calculator saves time and ensures accuracy. On the other hand, if a question asks for something specific, like the unit digit of a large number, you’ll need a different approach because the calculator won’t show you enough digits.

The key is to strike a balance between mental math, estimation, and strategic calculator use for success in the GRE’s Quantitative Reasoning section.

Also read: The GRE Quantitative Reasoning’s Latest Topics

How to Use the GRE Calculator?

During the GRE Quantitative Reasoning section, you’ll have access to a basic on-screen calculator to assist you with calculations. Look for the calculator icon within the test interface displayed on your computer screen. Clicking on this icon will open the calculator.

This is what the on-screen calculator provided during the GRE quantitative reasoning section looks like:

Unlike a scientific calculator, it’s fairly basic. It can perform addition, subtraction, multiplication, division, and some elementary tasks like finding square roots and changing signs. It also has memory functions to store and recall intermediate values.

The calculator adheres to the order of operations (PEMDAS), which means it prioritises certain calculations first. Understanding PEMDAS is important to avoid getting the wrong answers. For instance, the calculator will solve multiplications and divisions before additions and subtractions. So, entering “30 divided by 2 plus 3” will result in 18, which is incorrect. You’d need parentheses to instruct the calculator to prioritise the addition first.

Here’s a pro tip: don’t rely solely on the calculator. While it can handle complex calculations, the GRE often rewards quick thinking and estimation skills. Try to get an approximate answer in your head before using the calculator. This helps you check if the calculator’s answer is reasonable and avoid errors you might introduce by fat-fingering the buttons.

Also read: When to Start Preparing for the GRE?

On-Screen Calculator Interface Breakdown

The on-screen calculator offers a user-friendly interface for performing various mathematical calculations. Here’s a detailed breakdown of its components:

• Display area: Located at the top of the calculator, the display area is a clear and spacious window that shows the following:

1. Numbers you input

2. Mathematical operations you select

3. Final results of your calculations

• Number buttons (0–9): These standard numeric buttons allow you to enter numbers into the calculator for your calculations.

• Operation buttons (+, -,* /): These buttons represent the four fundamental arithmetic operations:

1. Addition (+)

2. Subtraction (-)

3. Multiplication (*)

4. Division (/)

Use these buttons to define how you want the entered numbers to be calculated.

• Clear buttons: Two clear buttons are provided for managing your input:

1. “C” button: Clears the last input you entered. This allows you to correct mistakes without having to re-enter everything.

2. “CE” button: Clears the entire input field. This is useful when you want to start a new calculation from scratch.

• Decimal point (.) button: This button allows you to include decimal points in your numbers for calculations involving fractions.

• Equal sign (=) button: Once you’ve entered your numbers and chosen the desired operation, press the “=” button to initiate the calculation. The result of your equation will be displayed on the screen.

Also read: How Many Mock Tests Should You Take Before the GRE?

Limitations of the GRE On-Screen Calculator

It’s important to understand the GRE on-screen calculator’s limitations before relying on it during the test. Here’s what it can’t do:

• Store values: Unlike most graphing calculators, the GRE calculator lacks a memory function. This means you can’t store numbers (like with M+, M-, MR, and MC buttons) for later use in calculations.

• Perform advanced math: The calculator is restricted to basic arithmetic operations like addition, subtraction, multiplication, and division. It can’t handle more complex functions like finding square roots, exponents, or trigonometric values (sine, cosine, tangent, etc.).

• Accommodate very large or small numbers: If you encounter numbers in scientific notation (e.g., 2.5 x 103), you won’t be able to enter them directly. The calculator won’t understand that format.

• Create graphs: Don’t expect graphing functionalities. The GRE calculator is strictly for numerical computations and won’t be able to plot any graphs or perform any tasks related to graphing.

Suggested: The 21 Most Difficult GRE Math Formulas

5 Essential Tips to Use the GRE Calculator

We discussed the functionalities of the GRE calculator earlier. Now, let’s explore how to leverage this tool strategically during the GRE. By following these five tips, you can effectively use the GRE calculator to save time and ensure accurate computations during the GRE exam.

1. Prioritise mental math

Don’t reach for the calculator for basic calculations like (4 x 8) or (2400/3). Solving these mentally is faster and eliminates the risk of typos (e.g., accidentally entering 2400/4). This strategy also helps you maintain focus and avoid getting bogged down by calculator use.

2. Use the keyboard

Whenever possible, use the computer keyboard for faster input. Enter numbers directly and leverage common shortcuts like *, -, /, +, and Enter instead of clicking each function individually on the calculator.

This minimises unnecessary mouse clicks and saves time. However, keep in mind that backspace, delete, or the “C” key on your keyboard won’t work to clear the calculator display.

3. Master order of operations

Ensure accurate calculations by using parentheses and the equal sign strategically. Ideally, use parentheses to group operations for clarity. Alternatively, if necessary, solve the equation step-by-step on scratch paper, writing down intermediate results before moving on to the next step.

This ensures you follow the correct order of operations (PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

4. Heed error messages

If the calculator displays an error message (e.g., exceeding the display limit), it’s likely an indicator that you need to revisit your approach to the question. The GRE won’t require calculations exceeding the calculator’s capabilities.

For instance, if exponents are involved, aim to solve the problem using your understanding of exponent rules (division, addition, multiplication, raising to a power, and factoring) rather than manually multiplying everything out.

5. Estimate and validate

Before using the calculator, develop a rough estimate of the answer based on the question and answer choices. Once you have a calculator answer, compare it to your estimate.

A significantly different result might indicate a typo or a misunderstanding of the question. This quick check can catch errors and boost your confidence in the chosen answer.

Suggested: GRE Self-Preparation

How to Ace the GRE with Yocket Prep+

Feeling the pressure to ace the GRE? Yocket Prep+ can be your guide. Unlike traditional prep methods, Yocket Prep+ has a community of over 20,000 GRE aspirants, all aiming to ace the GRE.

Start by identifying your strengths and weaknesses with a Yocket practice test, a full-length practice exam. Then, Yocket Prep+ provides you with a comprehensive study package, including 1500+ practice questions to hone your skills, 900+ vocabulary words to expand your knowledge base, and 4 full-length mock tests to simulate the real GRE experience.

But Yocket Prep+ goes further. With 50+ topic-based practice tests, you can focus on your specific needs, and there’s even more! Yocket Prep+ helps you not only master the GRE content but also be test-day-ready with essential time management skills. By focusing on high-yield areas and working on test-taking strategies, you’ll be well on your way to achieving your target GRE score.

From the Desk of Yocket

The GRE calculator is a tool for handling complex calculations that can take up valuable test time. Especially for problems with percentages, decimals, or exponents, a quick and accurate calculation with the calculator can ensure you stay on schedule.

However, relying solely on the calculator can be a hindrance. The GRE consistently assesses your problem-solving approach more than just your raw computational abilities. Spending excessive time using the calculator for basic math can slow you down and increase the risk of errors. To optimise your performance, it’s extremely important to develop strong mental math skills and estimation techniques while strategically using the calculator during the GRE.