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OAR Math Skills: Arithmetic and Number Operations Flashcards

6 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 6 OAR Math Skills: Arithmetic and Number Operations flashcards as text

  1. What is the square root of 196?

    Answer: 14

    14 × 14 = 196, so the square root of 196 is 14.

  2. A store marks up an item 40% from its cost of $85. What is the selling price?

    Answer: $119

    40% of $85 = $34, so the selling price is $85 + $34 = $119.

  3. Which of the following is a prime number?

    Answer: 37

    37 has no factors other than 1 and itself, making it prime.

  4. What is 2³ × 2²?

    Answer: 32

    When multiplying same-base exponents, add the exponents: 2^(3+2) = 2⁵ = 32.

  5. A crew of 6 sailors completes a task in 4 hours. How long would the same task take 8 sailors working at the same rate?

    Answer: 3 hours

    Total work = 6 × 4 = 24 person-hours; 24 ÷ 8 = 3 hours.

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

    Answer: 120

    5! = 5 × 4 × 3 × 2 × 1 = 120.