OSAT Elementary Mathematics Concepts Flashcards
7 cards from real OSAT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 OSAT Elementary Mathematics Concepts flashcards as text
A student has 3 groups of 4 apples. Which expression represents the total number of apples?
Answer: 3 × 4
Multiplication represents equal groups, so 3 groups of 4 is written as 3 × 4 = 12.
What is the value of the digit 7 in the number 4,782?
Answer: 700
In 4,782 the digit 7 is in the hundreds place, giving it a value of 700.
Which fraction is equivalent to 1/2?
Answer: 4/8
4/8 simplifies to 1/2 because both the numerator and denominator are divided by 4.
A rectangle has a length of 8 cm and a width of 5 cm. What is its area?
Answer: 40 cm²
Area of a rectangle = length × width = 8 × 5 = 40 cm².
Which number is prime?
Answer: 23
23 is prime because it has no factors other than 1 and itself.
If a bag of marbles weighs 2.5 pounds and another weighs 1.75 pounds, what is the combined weight?
Answer: 4.25 pounds
2.5 + 1.75 = 4.25 pounds when you align decimal points and add.
A pattern follows the rule 'add 6.' If the first term is 3, what is the 4th term?
Answer: 21
The sequence is 3, 9, 15, 21 — each term increases by 6, so the 4th term is 21.
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