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

A circular pizza has a diameter of 12 inches. What is its area? (Use π ≈ 3.14)
Answer: 113.04 sq in
Radius = 6; area = π × 6² = 3.14 × 36 = 113.04 sq in.
Solve for y: 4y + 12 = 36
Answer: 6
4y = 36 − 12 = 24; y = 24 / 4 = 6.
A worker earns $15 per hour and gets a 10% raise. What is the new hourly wage?
Answer: $16.50
Raise = 10% of $15 = $1.50; new wage = $15 + $1.50 = $16.50.
What is the greatest common factor (GCF) of 48 and 36?
Answer: 12
Factors of 48: 1,2,3,4,6,8,12,16,24,48; factors of 36 include 12; GCF = 12.
A sequence follows the rule: multiply by 3 each time. If the first term is 2, what is the 5th term?
Answer: 162
2 → 6 → 18 → 54 → 162; the 5th term is 162.
Convert 0.035 to a percent.
Answer: 3.5%
Multiply by 100: 0.035 × 100 = 3.5%.
If a rectangle's length is doubled and width is halved, how does its area change?
Answer: It stays the same
New area = (2L)(W/2) = LW = original area; it stays the same.