100 Hard Math

    These questions mirror the hardest problems on the real SAT — the ones appearing from 17-22 on math modules. Master them and you'll be able to handle any question with confidence.

    What makes these questions hard

    Every question here targets the 700+ scoring range — the kind of problem the SAT saves for positions 17-22 of a math module. Most of them stack two or three skills in a single prompt: a quadratic hidden inside a function translation, an exponent rule buried in a percent-change setup. You can know each skill on its own and still stall when they combine.

    The set covers the topics the hardest slots draw from most often — quadratics and their vertices, exponential functions, systems with no or infinitely many solutions, circles, trigonometry, and volume. Many answers are constants you have to solve for rather than clean multiple-choice picks, which is exactly how the real test raises the ceiling.

    How to use the video explanations

    Each question has its own video walkthrough. Make a real attempt on paper before checking anything, then watch the video whether you got it right or not — the method shown is often faster than the one that worked for you. If you missed a question, redo it from scratch a few days later instead of rewatching.

    All 100 questions

    1. 1Quadratic functionsFree response · Video explanation
    2. 2Trigonometry & anglesFree response · Video explanation
    3. 3FunctionsMultiple choice · Video explanation
    4. 4Systems of equationsMultiple choice · Video explanation
    5. 5FunctionsMultiple choice · Video explanation
    6. 6Percents & ratiosMultiple choice · Video explanation
    7. 7Exponential functionsFree response · Video explanation
    8. 8Volume & surface areaFree response · Video explanation
    9. 9FunctionsMultiple choice · Video explanation
    10. 10Quadratic functionsFree response · Video explanation
    11. 11GeometryFree response · Video explanation
    12. 12GeometryMultiple choice · Video explanation
    13. 13Systems of equationsMultiple choice · Video explanation
    14. 14Trigonometry & anglesMultiple choice · Video explanation
    15. 15Advanced algebraMultiple choice · Video explanation
    16. 16Systems of equationsFree response · Video explanation
    17. 17CirclesMultiple choice · Video explanation
    18. 18GeometryMultiple choice · Video explanation
    19. 19CirclesFree response · Video explanation
    20. 20Volume & surface areaFree response · Video explanation
    21. 21Volume & surface areaMultiple choice · Video explanation
    22. 22GeometryMultiple choice · Video explanation
    23. 23Statistics & probabilityMultiple choice · Video explanation
    24. 24Exponential functionsFree response · Video explanation
    25. 25Percents & ratiosFree response · Video explanation
    26. 26Exponential functionsFree response · Video explanation
    27. 27Systems of equationsFree response · Video explanation
    28. 28Percents & ratiosMultiple choice · Video explanation
    29. 29Percents & ratiosFree response · Video explanation
    30. 30Trigonometry & anglesMultiple choice · Video explanation
    31. 31Quadratic functionsFree response · Video explanation
    32. 32Advanced algebraMultiple choice · Video explanation
    33. 33Statistics & probabilityMultiple choice · Video explanation
    34. 34Exponential functionsMultiple choice · Video explanation
    35. 35Percents & ratiosFree response · Video explanation
    36. 36Exponential functionsMultiple choice · Video explanation
    37. 37Advanced algebraMultiple choice · Video explanation
    38. 38Statistics & probabilityFree response · Video explanation
    39. 39Advanced algebraFree response · Video explanation
    40. 40Percents & ratiosFree response · Video explanation
    41. 41Advanced algebraMultiple choice · Video explanation
    42. 42Quadratic functionsMultiple choice · Video explanation
    43. 43Quadratic functionsFree response · Video explanation
    44. 44Volume & surface areaMultiple choice · Video explanation
    45. 45Exponential functionsFree response · Video explanation
    46. 46Quadratic functionsMultiple choice · Video explanation
    47. 47Statistics & probabilityFree response · Video explanation
    48. 48FunctionsFree response · Video explanation
    49. 49GeometryFree response · Video explanation
    50. 50FunctionsFree response · Video explanation
    51. 51CirclesMultiple choice · Video explanation
    52. 52Quadratic functionsMultiple choice · Video explanation
    53. 53GeometryMultiple choice · Video explanation
    54. 54Volume & surface areaMultiple choice · Video explanation
    55. 55Trigonometry & anglesMultiple choice · Video explanation
    56. 56Advanced algebraMultiple choice · Video explanation
    57. 57Trigonometry & anglesMultiple choice · Video explanation
    58. 58Percents & ratiosFree response · Video explanation
    59. 59Advanced algebraMultiple choice · Video explanation
    60. 60Quadratic functionsFree response · Video explanation
    61. 61Quadratic functionsFree response · Video explanation
    62. 62Advanced algebraFree response · Video explanation
    63. 63Quadratic functionsMultiple choice · Video explanation
    64. 64Quadratic functionsFree response · Video explanation
    65. 65Volume & surface areaFree response · Video explanation
    66. 66GeometryFree response · Video explanation
    67. 67Statistics & probabilityFree response · Video explanation
    68. 68Volume & surface areaFree response · Video explanation
    69. 69CirclesMultiple choice · Video explanation
    70. 70Advanced algebraMultiple choice · Video explanation
    71. 71GeometryMultiple choice · Video explanation
    72. 72GeometryFree response · Video explanation
    73. 73Volume & surface areaMultiple choice · Video explanation
    74. 74CirclesMultiple choice · Video explanation
    75. 75Exponential functionsMultiple choice · Video explanation
    76. 76Advanced algebraFree response · Video explanation
    77. 77Exponential functionsFree response · Video explanation
    78. 78Exponential functionsMultiple choice · Video explanation
    79. 79Quadratic functionsFree response · Video explanation
    80. 80GeometryMultiple choice · Video explanation
    81. 81Advanced algebraMultiple choice · Video explanation
    82. 82GeometryFree response · Video explanation
    83. 83Quadratic functionsFree response · Video explanation
    84. 84Percents & ratiosFree response · Video explanation
    85. 85CirclesFree response · Video explanation
    86. 86Exponential functionsMultiple choice · Video explanation
    87. 87Quadratic functionsMultiple choice · Video explanation
    88. 88FunctionsFree response · Video explanation
    89. 89Systems of equationsMultiple choice · Video explanation
    90. 90Statistics & probabilityMultiple choice · Video explanation
    91. 91Statistics & probabilityMultiple choice · Video explanation
    92. 92Trigonometry & anglesMultiple choice · Video explanation
    93. 93Advanced algebraMultiple choice · Video explanation
    94. 94CirclesMultiple choice · Video explanation
    95. 95Volume & surface areaFree response · Video explanation
    96. 96Statistics & probabilityMultiple choice · Video explanation
    97. 97Exponential functionsMultiple choice · Video explanation
    98. 98Quadratic functionsMultiple choice · Video explanation
    99. 99CirclesMultiple choice · Video explanation
    100. 100Quadratic functionsFree response · Video explanation

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