For example, if you are multiplying 125 x 15, you can break this up into two component parts (factoring out, essentially). First, multiply 125 x 10 (1250). Second, divide that answer by 2 (625). Now add both numbers together (1250 + 625 = 1875). Instead of dealing with writing down the multiplication and work right-to-left, you can realize that you're looking for 125 x (10 + 5) = (125 x 10) + (125 x 5) = (125 x 10) + (125 x 10 / 2). By breaking the problem down to one simple calculation of 125 x 10, one division by 2, and one addition, you avoid a trickier multiplication. Always look for ways to use simpler calculations or memorized multiplication tables, for instance, to simplify a harder calculation. Understanding these component parts can then be applied to leaving a 15% tip, for example, and all you have to do is move some decimal places afterward. Practicing is the best way to keep your mind sharp when it comes to mathematical calculations. Work on different types of problems each day: word problems, percentage problems, long division, decimal calculations, etc. Challenge yourself to work on areas that you notice you struggle in. If fractions tend to give you a hang up when calculating, spend a week or two just doing fraction calculations. Even just looking at multiplication tables or worked out problems is beneficial. Eventually, you will start to notice patterns and new ways to deconstruct problems you didn't see before. Saying the numbers and process out loud will make you hear the calculation as you work it out, too. This adds a new layer of learning and memorizing on top of what's already there. Hearing yourself say a number creates another mental copy of the number in your working memory. With an auditory and visual copy of the number, it becomes easier to recall as you're calculating. Once you've done a calculation in your head, do it with pencil and paper. See if you have the same answer. Now, consult a calculator to check the answer once and for all. Although fingers can be a quick way to hold a number aside during a calculation, try to rely on the visual memory or even auditory memory instead. Testing yourself by not relying on a calculator or even writing the numbers down will help with your working memory, number recall, and even visual/spatial skills.
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One-sentence summary -- Simplify calculations into smaller, easier calculations. Do a few small calculations at least once a day. Vocalize your mental process to yourself. Try to do as much in your head as possible.

Q: Pap tests are the primary method for a doctor to check for cervical cancer or precancerous changes to the cervix. If a Pap test comes back irregular, the doctor may opt to perform an HPV DNA test to see if the Pap sample tests positive for HPV. However, some doctors also perform both tests together. Pap tests are recommended every three years for women under the age of 65 whose previous Paps have come back normal. If you receive an irregular Pap result, your doctor will advise you on a good testing schedule. HPV tests are may not be given as part of a routine exam for women, but many doctors perform both tests together. You can request an HPV test along with your pap test if you believe you have reason to worry. Samples for an HPV test are collected the same way as those for a Pap test, by swabbing the cervix. HPV tests are generally only recommended for women age 30 or over, and thus a doctor may not recommend one for younger patients. HPV is common in young women, and most strains are cleared up by a healthy immune system before any symptoms or complications can occur. Subsequently, your doctor may recommend another screening method, such as a Pap test, to see if there is any need for concern or further testing. At this point, HPV tests have only been effectively developed for women. Thus, a woman cannot ask a male partner to get screened for HPV in order to assess their risk. If you notice any warts, lesions, or lumps around your genital area, contact your doctor immediately. Set up an appointment to have the doctor look at any warts or suspicious symptoms as soon as possible. Genital warts often go away on their own, and depending upon your specific symptoms your doctor may recommend careful monitoring and no further treatment. If your doctor does recommend treatment, they may opt for topical treatments or freezing the warts. Ask your doctor if your treatment can be applied at home, or if it must be done by a medical professional. If you receive treatment for genital warts, ask your doctor, "What should I do to prevent infection in this area and minimize risk of future warts?" Be sure to talk with your doctor about any concerns you have about HPV. Part of a well woman exam is also an examination of the vulva, vagina, and anal area. If you are concerned that you are at risk for HPV infections, then let your doctor know so that these areas can be examined too.
A: Get a Pap test. Ask for an HPV test along with your pap test. Get any warts screened. Talk to your doctor at your annual checkup.

Article: Open up the oven, pull out the rack a bit, and push the sides of the cookie very lightly with a spatula or your finger. If the edge stays firm and doesn't fall inwards, then your cookies are done. If you leave a noticeable indention, then your cookies likely need a few minutes more in the oven. This is an especially good method to use with dark cookies, such as chocolate or gingerbread, where coloring isn't the best indication of doneness. If you choose to use your finger to test, make sure to be very careful or you could get burned by the baking sheet. If you are working with a fragile cookie, like shortbread, test them by pressing lightly into the center instead of the edges. This will lower the likelihood of them breaking up upon contact. Pull open your oven and slide your metal spatula halfway under a single cookie. Lift up just a bit and check the coloring of the cookie's underside. The cookie should appear light brown or golden in coloring and firm in texture. Be very careful when lifting or you could split the cookie in half. This method works well for sandies, spritz, and other pale colored cookies. It's sometimes hard to test the doneness of bar cookies because they are so dense and often dark in coloring. Get a wooden toothpick or skewer and push it into the bar. Keep going until you reach the halfway point of the cookie. Withdraw the toothpick. If there are lots of crumbs or batter on the wood, then the cookies are not quite done. It's important to use wood skewers or toothpicks. Metal ones do not work as well as the crumbs will simply slide off.
Question: What is a summary of what this article is about?
Press the edges with your finger. Lift the cookie up to check the bottom. Insert a toothpick into bar cookies.