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Calculators on the SAT: Tips from Experts  NerdyMates Blog
Allen: Is there such thing as believing in the calculator too much? Putting too much faith in it?
Have friends who also need help with test prep?
Posted by Dr. Fred Zhang  www.www.ted.com/profiles/6811055essay writing Jun 29, 2014 6:16:00 PM
How do you gain familiarity with a calculator? Pick one you like, and then use it for tests, homework, and anything else. To the extent possible, when doing classwork, don’t borrow other people’s, don’t use the class calculator. Gain familiarity with one calculator model.
Fred: Oh, and implicit in all of this is that you should stay away from calculators that don’t have an entry line. That 4function (only does add, subtract, multiply, divide) calculator in the closet? No way. Some scientific calculators don’t have an entry line — using one would be a large disadvantage.
Bonus Q&A: What’s Your Favorite Calculator for the SAT and Why?
Start Improving your SAT Score Today:
Fred: Oh, absolutely. Throughout my career, I’ve seen so many students who think that the right calculator will magically solve all their math problems. These students go through the trouble of firing up their Ti84, navigating a slew of menus to find a highpowered cubic equation solver, slowly enter in the equation carefully, hit enter, and get an rounded answer like .588 that they have to convert back to 10/17.
SAT / ACT Prep Online Guides and Tips
Intro to Calculators on the SAT
The most important lesson for calculator use, again, is to have a calculator at all. Secondly, it’s key doublecheck all entries. Thirdly, you have to develop familiarity with the calculator. And finally, use it mainly for four functions, plus just a bit more.
Calculators are appropriately used for a few reasons:
Calculators are allowed on the SAT, and not using them correctly can put you far behind. SAT experts Fred Zhang and Allen Cheng discuss which tips and strategies worked for them in getting perfect scores.
Many Scientific Calculators, like the Casio fx300MS (Fred’s personal favorite for the SAT I), have an entry line, as do the Ti83, Ti84 and Ti89.
2. Always Double Check the Entry Line
Calculators on the SAT: Tips from Experts
 To speed up complex 4function calculations (typing 3823 * 84 is much faster than doing it by hand)
Allen: Absolutely. My favorite SAT calculator is the Ti89, and I check the entry line all the time. If you’re a high scorer, it is crucial for preventing careless mistakes. If you’re not a high scorer, it lets you double check the order of operations, and lets you match the equation on the paper.
4. Know When to Put the Calculator Down
Allen: So just how important are calculators to the SAT?
Allen: I like the Ti89 the most. It’s one of the most powerful calculators acceptable on the SAT. Why do I love it?
The College Board Official Calculator Policy says that you don’t need a calculator for the SAT. They say that because, politically, the College Board needs to make the SAT seem accessible to people of all income levels. The reality is that a calculator, and the right calculator at that, is an absolute must.
Allen: I agree. Calculators can’t make your day, but can definitely break your day. You need to avoid mistakes to get a good score on SAT Math, which you need to do if, for example, you are aiming for a top engineering school. Here are our top tips.
What do we not recommend?
The only drawback is that, if you find that there is some graphing calculator function you must use, and you’ve found it to be helpful, it won’t be on this one. But I’ve personally never found such a “mandatory” graphing calculator function, at least not for the SAT I.
 You feel like you have to use a supercomplicated program to solve it
In fact, I would go so far as to say that you should really only be using the calculator to do combinations of the four basic functions, like (425+25)/3 – (42*4)/3.
 It has much more functionality that most other calculators (and is more expensive as well).
 Master one calculator.
 It has an Entry Line, and we talked about how important this is.
 When you have to use a large number of keypresses or menu navigations to get to your answer. More key presses means more chances for mistakes.
 It’s a relatively simple calculator, so you’ll never be tempted to boot up the cubic equation solver, which we discussed before is often less than optimal.
 Bring a backup to the test, or at least backup batteries.
 For minimal other uses
1. Bring a Calculator
Key Calculator Actionables
Fred: For sure, the Casio fx300MS. I have so many reasons for loving this calculator (and they’re not paying me to say this):
Why you’re leaving points on the table if you only take the SAT once
Fred: Always, always glance at this to double check before you hit enter. Glancing takes less than a second, and so many times, I caught myself typing (425+25) instead of (424+25) or reversing a decimal. A few mistakes like that on the math section can cost you up to 50100 points! By double checking, I have managed almost never to make a computation mistake.
We’ve taken the ACT, SAT, GRE, MCAT, and a whole slew of standardized tests as well as class tests. Whenever calculators were allowed, 9 out of 10 times they were of substantial help. When you need to multiply 2392 x 323, it’s faster and more accurate to do so on a calculator. Bring your calculator!
Beware of Using a Calculator When:
If you’re hoping to get the most out of your calculator, you must, must, must use one that you are used to. One that you’ve used for 20 hours or more, ideally. You have a vague muscle memory of where the keys are, what settings there are, and so forth. remember this: the worst calculator is an unfamiliar calculator. A familiar scientific calculator is far better than an unfamiliar Ti89.
Now that you know these tips, go out and conquer the SAT Math section!
Fred: I would say they’re of medium importance on the SAT I Math section. You absolutely need to have the right calculator strategy. On one hand, most of the work on the math section is interpreting the problem — a calculator can’t do that for you. On the other hand, you can really mess up with the wrong calculator strategy.
As an aside, do you know how to swim or ride a bike? If so, then you know how important being familiar with an activity is. Calculator familiarity is no different.
Other Posts You May Be Interested In:
Fred: Oh, by far, in school when I had to use one I wasn’t used to. I’d be hunting around for the “sine” symbol. I’d find it, but then realize I have to hit another button at the same time to activate it. And to add to that, halfway through the quiz, I realized the calculator angle unit was set in radians instead of degrees, so my answers would be all wrong.
Fred: For sure, calculator overusers suffer from typos on the calculator, and the conversion of rounded numbers to fractions.
Calculator Uses and Limitations
Allen: I’ve seen those in my day, and the kicker is that the math problem would take 2 minutes to do on the calculator, while if you just thought creatively about the problem, you’d get it in 15 seconds.
SAT Strategies
How to figure out your target SAT score
What does this mean you should do?
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What’s an Entry Line? It’s a line at the top of the calculator that shows you what you’ve typed:
3. Be Familiar With Your Calculator
Allen: What would you say your worst calculator experiences were?
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