Another advantage to the SAT math sections is that you are allowed to use your own approved calculator during the official test. Acceptable calculators include graphing calculators, scientific calculators and four-function calculators. Having your own calculator that you already use on a regular basis can help you to complete questions more quickly and easily. Be sure to install fresh batteries shortly before you take the SAT. And if you don’t have a calculator, you can still answer all questions on the test without one.