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Mathematics Flashcards

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

Read the first 7 Mathematics flashcards as text

  1. What is the circumference of a circle with radius 7 (use pi ≈ 22/7)?

    Answer: 44

    Circumference = 2(22/7)(7) = 44.

  2. A bag has 4 red and 6 blue marbles. What is the probability of drawing a red marble?

    Answer: 2/5

    There are 4 red out of 10 total marbles, so 4/10 = 2/5.

  3. Convert 5/8 to a decimal.

    Answer: 0.625

    5 divided by 8 equals 0.625.

  4. What is the value of the expression 18 ÷ (3 + 6) × 2?

    Answer: 4

    Parentheses first: 3 + 6 = 9, then 18 ÷ 9 × 2 = 2 × 2 = 4.

  5. A number increased by 15 equals 42. What is the number?

    Answer: 27

    Subtract 15 from 42 to get 27.

  6. What is the greatest common factor of 24 and 36?

    Answer: 12

    The largest factor shared by 24 and 36 is 12.

  7. If a right triangle has legs of 3 and 4, what is the length of the hypotenuse?

    Answer: 5

    By the Pythagorean theorem, sqrt(3^2 + 4^2) = sqrt(25) = 5.