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H I G H E R  \nS C O R E S .  \n800 CHALLENGE:  \nPA R T 1  \nTHE 1 5 0 HARDEST DIGITAL SAT MATH QUESTIONS —EVERY ONE WITH A VERIFIED ANSWER ,  \nA W R ITT E N SO L UT IO N A N D A V I D EO EX P LA NAT IO N .  \nby Abdulboriy Aminjonov 800 / 800 SAT MATH  \n27  \nALGEBRA  \n\n| 18\u003Cbr>PROBLEM-SOLVING & DATA ANALYSIS | 74\u003Cbr>ADVANCED MATH |\n| --- | --- |\n\n31  \nGEOMETRY & TRIGONOMETRY  \nQ U EST IO NS BY L EV E L  \n90 HARD 48  \nEXTRA HARD  \n12  800-LEVEL   \n800 Challenge:  \nHard Math 150—Part 1  \nSAT Math Club · Daily 800 Challenge Collection · by Abdulboriy Aminjonov  \nFirst edition · September 2026 · Version 1.0  \nCopyright © 2026 Abdulboriy Aminjonov, SAT Math Club. All rights reserved.  \nFree to share. You may share this PDF with anyone, free of charge, as long as it stays complete and unchanged—including the SAT Math Club branding and the Telegram link. You may not sell this book, charge for access to it, or republish its solutions, explanations or design under another name without written permission.  \nTeachers and schools may print copies for their own students, free of charge. For anyother use, contact SAT Math Club on Telegram, @satmathclub800.  \nAbout the questions. The questions were selected from Digital SAT practice material and SAT Math Club's Daily 800 Challenge, then edited for this book; rights in original test questions remain with their owners. The written solutions, explanations, difficulty labels, video explanations, layout and cover design are the work of SAT Math Club. Every answer in the Answer Key was checked by computer.  \nVideo explanations. Every question has one on Telegram, @satmathclub800. Search the code printed on the question—\\#SMC001 for № 1, \\#SMC150 for № 150. Part 1 covers channel questions № 1–150.  \nFound a mistake? Send the question code to @satmathclub800. Corrections go into the next version of this book.  \nSAT® is a trademark registered by the College Board, which is not affiliated with, and does not endorse, this book or SAT Math Club. This book is for practice; no particular score is guaranteed.  \nSet in Inter, Archivo Black and Liberation Sans. [t.me/satmathclub800](t.me/satmathclub800)  \nHARD MATH 1 5 0 · PART 1  \nWho this book is for  \nWho this book is for  \nIt's for you if…  \n• You score around 650–750 in SAT Math and are aiming for 780– 800.  \n• You've covered the basics and the official practice tests, and ordinary questions no longer challenge you.  \n• You lose points on the same kind of hard question every test—and want to know exactly why.  \n• You teach SAT Math and need a set of hard questions with complete solutions.  \n[t. me/satmathclub](t. me/satmathclub)  \nNot ready yet?  \nIf you're scoring below about 600, build your foundations first, then come back. You'll get much more out of every question here.  \n0  \n3  \nSpeed, not just answers. Every solution starts with the fastest reliable method—the one that saves you minutes on test day—then an alternative where one helps.  \nTelegram @satmathclub800 3  \nHARD MATH 1 5 0 · PART 1  \nWho this book is for  \n 4  The traps, named. The Traps box shows the wrong answers the testis built to catch. Learn them once and stop falling for them.  \n| A 3-week plan\u003Cbr>| |\n| --- | --- |\n| About 7 questions a day—roughly 30 minutes including checking the solutions. |  |\n\n[t. me/satmath](t. me/satmath)  \n[t. me/satmathclub800](t. me/satmathclub800)  \nTelegram @satmathclub800 4  \nHARD MATH 1 5 0 · PART 1  \nHow to use this book  \nHow to use this book  \nFind any video in 10 seconds  \nThe question numbers in this book match the question numbers on the channel exactly, and every question carries a search code: № 1 is \\#SMC001 , № 47 is \\#SMC047 , № 150 is \\#SMC150 .  \n1. Open @satmathclub800 on Telegram (scan the code) .  \n2. Tap the search icon and type the code, e.g.  \n\\#SMC047 .  \n3. The video explanation for that question comes up.  \nthclub800  \na  \nD","cbCaif3lpzUNL9mF","https://ap.wps.com/l/cbCaif3lpzUNL9mF","pdf",1769546,251,"English","# About the questions\n## Video explanations\n# Who this book is for\n## Not ready yet\n# Speed, not just answers\n# How to use this book\n## Find any video in 10 seconds\n# Difficulty labels\n## HARD, EXTRA HARD, 800-LEVEL","[{\"question\":\"Who is this book intended for?\",\"answer\":\"It is for students scoring around 650–750 in SAT Math who aim for 780–800, have covered basics and official practice tests, and want to learn exactly why hard questions go wrong.\"},{\"question\":\"How do I find the video explanation for a specific question?\",\"answer\":\"Open the SAT Math Club Telegram channel, tap the search icon, and enter the question’s code shown in the book (e.g., #SMC001 for №1 and #SMC150 for №150).\"},{\"question\":\"What do the difficulty labels mean?\",\"answer\":\"The book labels questions as HARD (top-third SAT question), EXTRA HARD (needs one key insight), and 800-LEVEL (the hardest questions on the test).\"}]","800 Challenge: Hard Math 150 - Part 1 - SAT Math Club Practice | PDF",1790891181,633]