Is 'The Trachtenberg Method' Worth Reading For Mental Math?

Elena Cordova designed revolutionary algorithms for a multi-million-dollar company. The only formula she couldn't solve? Her own marriage. After seven years of being the invisible wife to a cold billionaire, Elena is finally trading in her wedding ring for her worth. Marcus Ashford married her for obligation, hid her from the world, and replaced her with a woman who played the perfect stepmother. But when he finally pushes her too far, he discovers that the brilliant, betrayed woman he dismissed has been running calculations all along. Now, Elena is back in the boardroom, her mind sharp, her fortune growing, and a handsome rival billionaire watching her every move. She wants revenge. She wants vindication. She wants her daughter back. Marcus thought she was a social climber. He thought she was docile. He thought he could replace her. He was wrong. He used her for her brilliance. Now, she'll use her brilliance to take everything back. Divorce is just the beginning of her beautiful, calculated comeback.

Bullied. Broke. Betrayed. 20-year-old Ethan Reyes is at rock bottom—until a mysterious A.I. system grants him unimaginable wealth and power. With the Trillionaire System, he’ll rise from a forgotten nobody to the richest man in the country. Those who mocked him will kneel. Those who betrayed him will pay. But as enemies emerge and loyalties are tested, Ethan learns that money isn’t everything—love, loyalty, and revenge are priceless.

A month before the SATs, I, Jenny Reid, could see my score. Literally. It was just floating right above my head. But there was a catch. Every time I cracked open a prep book, my score would drop by ten points. But if I skipped a day of school? It jumped right back up by ten. So, I played the system. For a whole month, I barely lifted a finger. And on the day of the test, the number glowing over my head was a solid 1560. When the scores finally dropped online… I'd scored a 500. And the 1560? That was my little sister Patricia's score. My parents lost it. As punishment, they got me a grueling night-shift job at a local electronics factory. That first night, a bunch of guys I'd never seen before cornered me in the parking lot and beat me half to death. Fading in and out of consciousness, I heard my sister's voice right by my ear. "You just had to one-up me, didn't you? Thought you were so smart… but you never figured out I was the one controlling that number over your head." The truth hit me like a physical blow. The score had been her trick all along. I opened my eyes—and I was back. One month before the SATs. The number above my head read exactly 1300. "Hey," my sister said, all fake sweetness. "Want to study together tonight? We can go over the practice tests." I looked at the stack of papers in my own hands. Without a word, I pulled out my lighter and set them on fire right there in the driveway. "Exams are coming," I said, watching the flames. "I'm not studying." My score ticked up to 1310. My sister's face was this perfect mask of disappointment, but the second I turned away, I caught the sly smile she couldn't quite hide. She had no idea… the real performance, the one I'd been rehearsing just for her, was finally about to begin.

My younger sister, Joey Crawford, and I have taken the exam 20 times in a row. Yet, our answer sheet shows the exact same answers every time. No matter how fast I complete the exam, Joey is able to turn in her paper one second before me. My homeroom teacher, Mr. Harris, has spoken with me three times regarding this matter. At the same time, I receive my first warning for cheating on the exams. Whenever my classmates see me, they say to me, "Hey, cheater! You got busted this time, huh?" The thing is, I've never even touched Joey's paper. How can our answers be exactly the same? During the college entrance exam, I suddenly awaken to the ability to see the live comments dangling in midair. "The female lead is the chosen one! It must feel amazing to have awakened the mind-reading ability and all!" "She relies on reading the side character's mind just to obtain all the answers. So what if the side character excels in her studies? Her role is to become the female lead's stepping stone to success!" It turns out that Joey has been stealing my answers by reading my mind this whole time. As I flip the exam papers over, I start singing the alphabet song mentally. "A-B-C-D-E-F-G…"

When he and his father eventually decide to begin a new life after his mom and sister's death, Praxis Cohen, a suicidal teenager with an expressionless visage on his face, finds himself in a huge, formidable laboratory where teenagers like him are being injected a drug of which the effect is still unknown. Fortunate enough, his body can withstand the drug that leads him to be declared by Dr. Conscire as the first patient to have successfully passed the First Stage of the experiment in this generation. As he proceeds to the Second Stage, Dr. Conscire, the president of the organization, decides to release him off the laboratory to find out that the effect of the drug enables him to read minds and do psychokinesis that sets his mind into chaos. In his debacle as an experimented guinea pig of the nameless organization, realizing that he is not alone in this experiment, Praxis meets new marvelous people to discover the origin of the experiment, the reason why they turned into supernormal beings, the connection of this experiment to the unborn world war in the future, the twists and turns of their past stories, and to discern the next stages of the experiment. With the collaborative effort of their team, they strive to choose the best course of action to put an end to this fight.

Welcome to Natalia’s High School Manual! Natalia has been living her whole life following the invented rules on her manual to avoid any unnecessary and chaotic events in her school. Together with her bestfriend, Nerdy Nathan, witnessed how the two of them together with their newfound friends survive the challenges of high school life while having a roller coaster ride of emotions because of friendship, stress, and of course, love.