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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. A boat travels 240 miles in 6 hours. At the same speed, how long will it take to travel 400 miles?

    Answer: 10 hours

    Speed = 240/6 = 40 mph; time = 400/40 = 10 hours.

  2. What is the value of 3x − 7 when x = 5?

    Answer: 8

    3(5) − 7 = 15 − 7 = 8.

  3. A rectangle has a length of 14 cm and a width of 9 cm. What is its perimeter?

    Answer: 46 cm

    Perimeter = 2(14 + 9) = 2(23) = 46 cm.

  4. Which of the following is equivalent to 5²× 5³?

    Answer: 5⁵

    When multiplying powers with the same base, add exponents: 5^(2+3) = 5⁵.

  5. If 40% of a number is 56, what is the number?

    Answer: 140

    0.40 × n = 56, so n = 56 / 0.40 = 140.

  6. A triangle has angles measuring 55° and 75°. What is the measure of the third angle?

    Answer: 50°

    The angles of a triangle sum to 180°: 180 − 55 − 75 = 50°.

  7. Simplify: (4x²)(3x³)

    Answer: 12x⁵

    Multiply coefficients (4 × 3 = 12) and add exponents (2 + 3 = 5): 12x⁵.