SAT数学解析攻略

2019-12-09 15:59:00来源：网络

【考试动态】2019年SAT考试时间报名费用报考指南成绩查询送分流程成绩要求成绩换算
【资料推荐】SAT词汇巴朗3500系列SAT阅读OG1-8经典错题解析SAT数学满分冲刺重要知识点
【备考指导】CB发布2018年SAT考试官方报告SAT北美考点汇总美国大学TOP100SAT成绩要求

　　为了帮助大家高效备考SAT，新东方在线SAT频道为大家带来SAT数学解析攻略，希望对大家SAT备考有所帮助。更多精彩尽请关注新东方在线SAT频道!

　　Strategies for Math

　　For math, the best preparation is to do math. Make sure to keep up with your homework in school, take math AT LEAST through Algebra 2, and try your best. The more math you do, the more comfortable you will be when the SAT arrives.

　　Of course, there are certain strategies for the exam that are useful:

　　Estimation

　　If a particular diagram is drawn to scale (which they always are unless otherwise specified), then use common sense. Get rid of answers that look too small or too big. Try to figure out the relative largeness of a value with respect to the choices if you can't directly solve the problem.

　　DRAW!

　　I cannot specify how important this strategy is. It's not only a strategy, it's a necessity. If you find there's a weird geometric figure that you've never seen before and don't know how to tackle (for area, perimeter, etc.), then DRAW LINES! Try to break it into things you know how to work with or try to extend things to make something you're familiar with. Make sure to mark angles, sides, etc. Geometry problems should be thoroughly written all over when you're done.

　　Plugging in

　　It's multiple choice! What better way to find which choice is correct than to test them out? For something you can easily tackle, don't bother, as this method is inefficient. But for something that is difficult, then just try to plug in to see what works. At worst, you'll eliminate the blatantly wrong answers, and at best, you'll eliminate all the wrong answers.

　　Simplification!

　　Another really important one. If you get a really long expression or quotient, odds are, you're meant to simplify it. Usually just cancelling out a factor or two will magically yield what you're looking for. Oh, so satisfying!

　　Factoring

　　Always, always be able to recognize how to factor/unfactor something. Many times those intimidating numbers & operation problems can be solved if you just factor or unfactor. Learn things like the expansion of (a+b)^2 and how to undo its expansion to get this. With practice, this becomes second nature and you gain a LOT of points!

　　Substitution

　　Learn to recognize when to plug in one quantity for another. Usually this solves a great number of the harder problems.

　　For a review of the actual mathematics, the Official SAT Study Guide provides a fairly good refresher. I suggest that almost everyone work through it -- there's always something you never learned/forgot, even if you're in upper level math.

　　以上就是关于“SAT数学解析攻略”的内容，更多精彩内容，请关注SAT频道!

SAT水平能力测试【0元免费测试】