ACT Math Exam Questions 2026. Exam Questions and Correct Answers With
100% Correct Answers | Latest 2026 |
quadratic formula - [-b ± √(b² - 4ac)] / (2a)
slope formula - (y2- y1) / (x2- x1)
rationals - fractions (anything expressible as a ratio of integers)
order of operations - PEMDAS (Parentheses (grouping symbols - inside to outside) /
Exponents / Multiply & Divide (Left to right) / Add & Subtract(Left to right))
Arithmetic Sequences - t1, t1+ d, t1+2d, ...
Geometric Sequences - t1, t1· r, t1· r², ...
percentages - part = (percent / 100) x whole; is/of=%/100
average or mean - sum of terms / number of terms
average speed - total distance / total time
sum - average x (number of terms)
mode - value in the list that appears most often
, median - middle value in the list after values are put in numerical order
fundamental counting principle - if an event can happen in N ways, and another,
independent event can happen in M ways, then both events together can happen in N x M ways.
probability - number of desired outcomes / number of total outcomes
adding exponents - x^a · x^b = x^(a+b)
subtracting exponents - x^a / x^b = x^(a-b)
negative exponents - 1 / x^b = x^(-b)
multiplying exponents - (x^a)^b = x^(a·b)
x^0 - 1
roots - √(xy) = √x · √y
FOIL - (x+a)(x+b) = x² + (b+a)x + ab
difference of squares - a² -b² = (a+b)(a-b)
a² + 2ab + b² - (a+b)²
a² - 2ab + b² - (a-b)(a-b)
100% Correct Answers | Latest 2026 |
quadratic formula - [-b ± √(b² - 4ac)] / (2a)
slope formula - (y2- y1) / (x2- x1)
rationals - fractions (anything expressible as a ratio of integers)
order of operations - PEMDAS (Parentheses (grouping symbols - inside to outside) /
Exponents / Multiply & Divide (Left to right) / Add & Subtract(Left to right))
Arithmetic Sequences - t1, t1+ d, t1+2d, ...
Geometric Sequences - t1, t1· r, t1· r², ...
percentages - part = (percent / 100) x whole; is/of=%/100
average or mean - sum of terms / number of terms
average speed - total distance / total time
sum - average x (number of terms)
mode - value in the list that appears most often
, median - middle value in the list after values are put in numerical order
fundamental counting principle - if an event can happen in N ways, and another,
independent event can happen in M ways, then both events together can happen in N x M ways.
probability - number of desired outcomes / number of total outcomes
adding exponents - x^a · x^b = x^(a+b)
subtracting exponents - x^a / x^b = x^(a-b)
negative exponents - 1 / x^b = x^(-b)
multiplying exponents - (x^a)^b = x^(a·b)
x^0 - 1
roots - √(xy) = √x · √y
FOIL - (x+a)(x+b) = x² + (b+a)x + ab
difference of squares - a² -b² = (a+b)(a-b)
a² + 2ab + b² - (a+b)²
a² - 2ab + b² - (a-b)(a-b)
