📚 SAT Math Calculator Policies and Test Day Rules | SAT数学计算器使用规定与考场要求
The SAT Math section now allows calculator use throughout the entire test. Understanding the official College Board calculator policies and test day rules is crucial for a smooth testing experience. This article explains what calculators are permitted, which ones are banned, how to use the built-in Desmos calculator, and what to expect on exam day.
SAT数学部分现已允许在整个考试过程中使用计算器。了解美国大学理事会（College Board）官方的计算器政策及考场规则对于顺利参加考试至关重要。本文将说明允许携带的计算器类型、禁止的计算器、如何使用内置的Desmos图形计算器，以及考试当天的注意事项。
1. Current SAT Math Calculator Policy | 现行SAT数学计算器政策
Since the transition to the digital SAT in 2023–2024, the Math section no longer separates calculator and no-calculator portions. Students are allowed to use a calculator on all math questions, a significant change from the old paper-based format.
自2023–2024年转为数字SAT以来，数学部分不再区分计算器使用和非计算器使用部分。考生可在所有数学题目上使用计算器，这与旧版纸笔考试相比是一个重大变化。
The test provides a built-in Desmos graphing calculator, and students may also bring their own approved handheld calculator. This policy applies uniformly to international and U.S. administrations.
考试系统自带Desmos图形计算器，考生也可携带自己已获批准的手持计算器。该政策统一适用于国际考场和美国考场。
2. Allowed Handheld Calculators | 允许的手持计算器
College Board permits most scientific and graphing calculators. Allowed models include popular brands such as Texas Instruments (TI-84, TI-83, TI-30 series), Casio (FX-991EX, Prizm), HP (HP-35s), and many others. Generally, any calculator that does not have a QWERTY keyboard, internet access, or a camera is acceptable.
大学理事会允许大多数科学计算器和图形计算器。批准的型号包括德州仪器（TI-84、TI-83、TI-30系列）、卡西欧（FX-991EX、Prizm）、惠普（HP-35s）等众多常见品牌。一般来说，任何不具备QWERTY键盘、无互联网连接功能和摄像头的计算器均可接受。
It is recommended to check the official College Board calculator list before test day, as some borderline models may be subject to proctor discretion. Also be aware that while older models like the TI-89 are allowed, they must not have a QWERTY keyboard.
建议在考前查看College Board官方计算器列表，因为一些界定模糊的型号可能由监考人员酌情决定。还需注意的是，像TI-89这类较老型号若没有QWERTY键盘是允许的。
3. Prohibited Calculators | 禁止的计算器
Calculators with typewriter-like keyboards, such as the TI-92, Voyage 200, and any device with a physical or touch-screen QWERTY layout, are strictly banned. Additionally, all smartphones, tablets, laptops, and smartwatches are prohibited, even if they have a calculator mode.
带有类似打字机键盘的计算器，如TI-92、Voyage 200，以及任何带有实体或触摸屏QWERTY布局的设备，均严格禁止。此外，所有智能手机、平板电脑、笔记本电脑和智能手表，即便有计算器模式，也一律禁止使用。
Devices with wireless communication, audio recording, scanning, or camera capabilities are not allowed. Calculators that make noise, have paper tape (printing calculators), or require an electrical outlet are also forbidden. Using a prohibited device can result in score cancellation and ejection from the test center.
具有无线通信、录音、扫描或拍摄功能的设备均不允许。会发出声音、带有打印纸带（打印式计算器）或需要插电的计算器同样被禁止。使用违禁设备可能导致成绩被取消并被请出考场。
4. Built-in Digital Calculator: Desmos | 内置数字计算器：Desmos
The digital SAT testing app (Bluebook) includes a fully functional Desmos graphing calculator. It supports graphing equations, finding intersections, performing statistical calculations, creating tables, and using sliders. This calculator is available for the entire Math section and can be expanded to full-screen mode.
数字SAT考试应用（Bluebook）内置了功能齐全的Desmos图形计算器。它支持绘制方程图像、求交点、执行统计计算、创建表格和使用滑动条。该计算器在整个数学部分均可使用，并可放大至全屏模式。
Familiarity with Desmos is essential. Students are advised to practice using the built-in tool through the Bluebook app well before the exam. While Desmos covers most needs, some students may still prefer the tactile feedback and specific functions of their own handheld calculators.
熟悉Desmos至关重要。建议学生提前通过Bluebook应用大量练习使用这一内置工具。尽管Desmos可满足大部分需求，部分学生可能仍偏好自己手持计算器的触感反馈和特定功能。
5. Bringing Your Own Calculator | 携带自己的计算器
You are allowed to bring your own approved calculator even though a built-in option is available. This can be particularly helpful if you rely on certain shortcuts, programs, or a familiar button layout. Make sure your device is in good working order with fresh batteries or a full charge.
即便考试系统提供内置计算器，你仍可携带自己获批准的计算器。如果你依赖某些快捷键、程序或熟悉的按键布局，这会特别有帮助。请确保设备运转良好，电池电量充足或已充满电。
Consider bringing a backup calculator or spare batteries, as test centers will not provide them. Both calculators must be approved models, and you will need to follow the proctor's instructions regarding storage and use during the test.
建议携带备用计算器或备用电池，因为考试中心不会提供。两个计算器都必须是批准型号，且你需要遵照监考人员的指示在考试期间存放和使用。
6. Calculator Memory and Programs | 计算器内存与程序
College Board does not require you to clear your calculator's memory before the test. Stored formulas, notes, and programs are permitted as long as they do not constitute an unfair advantage that violates test security. However, programs that simulate CAS (Computer Algebra System) functionality on a non-CAS device might draw attention.
College Board不要求考生在考前清除计算器内存。存储的公式、笔记和程序都是允许的，只要它们不构成违反考试安全的不公平优势。然而，在非CAS设备上模拟CAS（计算机代数系统）功能的程序可能会引起注意。
If your calculator model itself is CAS-equipped (like the TI-Nspire CAS), it is allowed only if that specific model is on the approved list. Always review the policies for CAS calculators, and avoid using any programs that could be perceived as automatic problem solvers, such as those solving symbolic equations step-by-step.
如果你的计算器本身具备CAS功能（如TI-Nspire CAS），只有该特定型号在批准名单中才可使用。请务必审阅关于CAS计算器的政策，并避免使用任何可能被视为自动解题的程序，比如逐步求解符号方程的程序。
7. Test Day Rules and Protocol | 考试当天规定与流程
Upon arrival at the test center, proctors may inspect your calculator to ensure it meets the requirements. It must be silenced, and all covers, cases, and protective skins should be removed and stored away. Calculators must be placed under your chair when not actively in use.
抵达考场后，监考人员可能会检查你的计算器是否符合要求。计算器必须静音，所有外壳、皮套和保护膜应取下并收好。不使用时，计算器须放在座椅下方。
Calculators cannot be shared with other test-takers. You are also prohibited from using your calculator to communicate, access stored text files in a way that simulates notes, or connect to any external network. Violations may result in immediate dismissal, and your scores could be invalidated.
不能与其他考生共用计算器。也不得利用计算器进行通信、以模拟笔记的方式访问存储的文本文件，或连接任何外部网络。违规行为可能导致被立即请出考场，成绩也可能被作废。
8. Troubleshooting and Technical Issues | 故障排除与技术问题
If your handheld calculator malfunctions mid-test, you cannot ask for a replacement; you must continue using the built-in Desmos calculator or perform calculations by hand. Therefore, never rely entirely on a single device. It is wise to practice basic arithmetic and problem-solving without a calculator as a safety net.
如果你的手持计算器在考试中途发生故障，你不能要求更换，必须继续使用内置的Desmos计算器或以手工计算。因此，绝不要完全依赖单个设备。明智的做法是练习基本算术和在无计算器情况下解题，作为安全网。
If the digital Desmos calculator freezes or lags, remain calm and raise your hand to notify the proctor. The Bluebook app typically auto-saves progress, and the proctor can guide you through restarting the relevant section. Knowing the manual approach for common functions can save time in such situations.
如果内置Desmos计算器卡顿或死机，请保持冷静并举手通知监考老师。Bluebook应用通常会自动保存进度，监考老师可指导你重新启动相关部分。了解常用功能的手动操作方法在此类情形下能节省时间。
9. Effective Calculator Strategies | 高效使用计算器策略
Use the calculator strategically—not for every question. For simple operations, mental math is often faster and reduces the risk of input errors. Reserve the calculator for complex algebra, graphing, and data analysis. Learn to quickly toggle between the Desmos calculator and the question screen to manage time effectively.
策略性地使用计算器——不要每题都用。对于简单运算，心算往往更快且可减少输入错误。将计算器留到复杂代数、图像绘制和数据分析时使用。学会在Desmos计算器和题目界面之间快速切换，以有效管理时间。
Leverage Desmos for solving systems of equations, finding intercepts, and creating regression models. During your preparation, experiment with both your handheld calculator and Desmos to determine which tool gives you the best balance of speed and accuracy. Develop muscle memory for key sequences so you don't waste seconds hunting for functions during the exam.
利用Desmos求解方程组、寻找截距和建立回归模型。在备考期间，尝试同时使用手持计算器和Desmos，确定哪种工具能为你带来速度与准确度的最佳平衡。培养关键序列的肌肉记忆，以免在考试时浪费秒数寻找功能键。
10. Frequently Asked Questions | 常见问题解答
Q: Can I use my phone as a calculator? A: No, phones are strictly banned and must be turned off and stored away. Q: Is a graphing calculator mandatory? A: Not mandatory, but extremely helpful. The built-in Desmos fulfills all graphing requirements. Q: Can I bring two calculators? A: Yes, as long as both are approved; keep the spare under your chair until needed.
问：是否可以使用手机当计算器？答：不行，手机严格禁止，必须关机并存放在指定区域。问：图形计算器是必需的吗？答：不是必需的，但极有帮助。内置的Desmos能满足所有图形需求。问：可以带两个计算器吗？答：可以，只要两个都获批；备用计算器放在座椅下，直到需要时使用。
Q: What if my calculator model is not on the official approved list? A: If it lacks prohibited features like QWERTY keyboard, internet, or camera, it is generally allowed, but contact College Board ahead of time to confirm. Q: Can I use the calculator during breaks? A: No, calculators must remain turned off and stowed during any break. Unauthorized use may be considered a violation.
问：如果我的计算器型号不在官方批准名单上怎么办？答：如果没有QWERTY键盘、互联网或摄像头等违禁功能，通常可以使用，但最好提前联系College Board确认。问：休息时间可以使用计算器吗？答：不可以，计算器必须在休息期间保持关闭并收好。擅自使用可能被视为违规。
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