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How to Tackle the ACT in Math Part 1 – The Target Score Math Scale Scores Scale Score Raw Score Scale Score Raw Score Scale Score Raw Score 36 60 29 50-51 22 33-34 35 59 28 48-49 21 31-32 34 58 27 45-47 20 29-30 33 56-57 26 42-44 19 26-28 32 55 25 40-41 18 24-25 31 54 24 37-39 30 52-53 23 35-36 What Is Your Fit? How to Use The Scale Score Take your raw score and add 5 points. 2. Spend your time working on those problems * Note: Math test in order of difficulty! 3. Pick your favorite column for the rest of the questions (unless you have extra time……..use that gift!!) 1. Math Strategy #1 – Arbitrary Numbers * Pick a number and plug in for variable in possible answers * The one that equals the problem is the answer! Example #1 Which of the following expressions is equivalent to n3 – n2? A) B) C) D) E) n2 (n + 1) n (n – 1) n2 (n – 1) n n (n2 – 1) Let’s say we let n = 2…. Which of the following expressions is equivalent to n3 – n2? A) B) C) D) E) n2 (n + 1) n (n – 1) n2 (n – 1) n n (n2 – 1) Which of the following expressions is equivalent to 23 – 22? (This = 4) A) B) C) D) E) n2 (n + 1) n (n – 1) n2 (n – 1) n n (n2 – 1) Which of the following expressions is equivalent to 23 – 22? (This = 4) A) B) C) D) E) n2 (n + 1) 22 (2 + 1) 12 n (n – 1) 2 (2 – 1) 2 n2 (n – 1) 22 (2 – 1) 4 right! n 2 n (n2 – 1) 2 (22 – 1) 6 #2 – Plugging In Answers Plug answers into problem until correct answer is achieved! Example #2 A high school basketball player has shot 170 free throws, making 100. Starting now if she makes each free throw she attempts, what is the least number of free throws she must attempt to raise her percentage to at least 70%? A) 19 B) 20 C) 63 D) 64 E) 70 A high school basketball player has shot 170 free throws, making 100. Starting now if she makes each free throw she attempts, what is the least number of free throws she must attempt to raise her percentage to at least 70%? A) 19 B) 20 C) 63 119/189 = 63% 120/190 = 63% 163/233 = 70% RIGHT!! D) 64 164/234 = 70% E) 70 170/240 = 71% #3 Coordinate Geometry Pictures can make life easier if you forget formulas under pressure! Example #3 Points A (5,3) and P (-3,8) lie in the standard (x , y) coordinate plane. What is the slope of line AP? A) -5/8 B) 5/8 C) -2/11 D) 2/11 E) 11/2 Is the slope pos or neg? NEGATIVE, SO ELIMINATE B, D, AND E! So is it A) -5/8 or C) -2/11? COUNT IT OUT!!! So remember……. Easy to hard in math…. Don’t try to work out all 60 problems! Keep it simple….your math teacher will never know!!