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Math Flashcards

7 cards from real ACT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Math flashcards as text
  1. Simplify the expression: (x^3)(x^4).

    Answer: x^7

    When multiplying powers with the same base, add the exponents: 3 + 4 = 7.

  2. What is the area of a circle with radius 4 (use π)?

    Answer: 16π

    Area = πr^2 = π(4)^2 = 16π.

  3. If 2/5 of a number is 18, what is the number?

    Answer: 45

    Number = 18 ÷ (2/5) = 18 × (5/2) = 45.

  4. Solve for y: 4y + 8 = 24.

    Answer: 4

    Subtract 8 to get 4y = 16, then divide by 4 to get y = 4.

  5. What is the median of the data set 3, 7, 9, 12, 15?

    Answer: 9

    With five ordered values, the middle value is the third one, 9.

  6. A shirt costs $40 and is discounted 25%. What is the sale price?

    Answer: $30

    25% of $40 is $10, so $40 - $10 = $30.

  7. What is the value of 5! (5 factorial)?

    Answer: 120

    5! = 5 × 4 × 3 × 2 × 1 = 120.