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OAR Math Skills Flashcards

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

Read the first 7 OAR Math Skills flashcards as text

  1. What is the median of the data set: 4, 7, 9, 2, 11, 6, 3?

    Answer: 6

    Arranged in order: 2, 3, 4, 6, 7, 9, 11 — the middle value is 6.

  2. A store sells a jacket for $85 after applying a 15% discount. What was the original price?

    Answer: $100.00

    85 = 0.85 × original price, so original = 85 / 0.85 = $100.

  3. What is the slope of the line passing through points (2, 3) and (6, 11)?

    Answer: 2

    Slope = (11 − 3) / (6 − 2) = 8 / 4 = 2.

  4. Evaluate: 18 − 3 × (4 + 2) ÷ 6

    Answer: 15

    Following order of operations: 3 × 6 = 18, 18 ÷ 6 = 3, then 18 − 3 = 15.

  5. A container holds 3.5 liters. How many 250 mL servings can it provide?

    Answer: 14

    3.5 L = 3500 mL; 3500 ÷ 250 = 14 servings.

  6. The ratio of boys to girls in a class is 3:4. If there are 28 girls, how many boys are there?

    Answer: 21

    If 4 parts = 28 girls, 1 part = 7; boys = 3 × 7 = 21.

  7. Which expression is equivalent to 2(3a − 5) + 4a?

    Answer: 10a − 10

    Distribute: 6a − 10 + 4a = 10a − 10.