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Mathematics Flashcards

7 cards from real PSSA 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 least common multiple (LCM) of 4 and 6?

    Answer: 12

    Multiples of 4: 4, 8, 12… Multiples of 6: 6, 12… The LCM is 12.

  2. A bag contains 3 red marbles, 5 blue marbles, and 2 green marbles. What is the probability of randomly selecting a blue marble?

    Answer: 1/2

    There are 5 blue out of 10 total marbles, so probability = 5/10 = 1/2.

  3. Which expression represents 'the product of 7 and a number n, decreased by 4'?

    Answer: 7n − 4

    'Product of 7 and n' is 7n; 'decreased by 4' means subtract 4, giving 7n − 4.

  4. A car travels 240 miles in 4 hours. What is the car's average speed in miles per hour?

    Answer: 60 mph

    Speed = distance ÷ time = 240 ÷ 4 = 60 mph.

  5. Which set of numbers is ordered from least to greatest?

    Answer: −5, −1, 0, 3, 7

    From least to greatest: −5 < −1 < 0 < 3 < 7.

  6. What is the perimeter of a square with a side length of 9 inches?

    Answer: 36 inches

    Perimeter of a square = 4 × side = 4 × 9 = 36 inches.

  7. Solve for x: 2x + 8 = 20

    Answer: 6

    Subtract 8 from both sides: 2x = 12; divide by 2: x = 6.