Math Practice TEAS Test

Correct Answer: A

Rationale: Correct Answer: A Rationale: 1. Sum of two odd numbers is always even (odd + odd = even). 2. Sum of two even numbers is always even (even + even = even). 3. Sum of an odd number and an even number is always odd (odd + even = odd). Therefore, the sum of two odd numbers, two even numbers, an odd number, and an even number would be Even + Even + Odd + Odd = Even. Summary: Choice A is correct as it follows the rules of adding odd and even numbers. Choices B, C, and D are incorrect as they incorrectly state the outcomes of adding odd and even numbers.

Correct Answer: B

Rationale: To calculate the probability of consecutively pulling two more orange blocks, we first find the probability of pulling one orange block (3/12) and then the probability of pulling another orange block out of the remaining orange blocks (2/11). Multiplying these probabilities gives (3/12) * (2/11) = 6/132 = 3/55. Therefore, the correct answer is B. Choice A (3/12) is the probability of pulling one orange block, but it doesn't account for the second draw. Choice C (2/10) is incorrect as it doesn't consider the changing probabilities after the first draw. Choice D (1/3) is the probability of pulling one orange block only.

Correct Answer: B

Rationale: To find the total height when stacked, we add the heights of the two bookcases. 32.75 inches + 17.25 inches = 50 inches Therefore, the correct answer is B (50 inches). Explanation for incorrect choices: A: 49.5 inches is incorrect because the heights are added, not averaged. C: 48 inches is incorrect as it's less than the sum of the two heights. D: 51 inches is incorrect as it's greater than the sum of the two heights.

Correct Answer: A

Rationale: The correct answer is A: PEMDAS. PEMDAS stands for Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction, which is the order of operations in mathematics. By following PEMDAS, you ensure the correct sequence of operations and accurate results in mathematical calculations. Using PEMDAS prevents errors and ambiguity in expressions. It is essential to always use PEMDAS to maintain consistency and accuracy in mathematical computations. Summary of other choices: B: Variables are used in algebra to represent unknown quantities, but they are not always required in all math. C: Conversion factors are used in unit conversions, but they are not universally necessary in all math situations. D: Estimation is a useful skill in math for approximating results but is not a fundamental requirement in all mathematical operations.

Correct Answer: A

Rationale: The correct answer is A: Equals. In math, "is" signifies equality between two expressions or values. It indicates that the quantities on both sides of the "=" sign are the same. For example, in the equation 2 + 3 = 5, the "is" represents that the sum of 2 and 3 equals 5. Explanation for other choices: B: Multiply - The symbol for multiplication is "*", not "is." C: Subtract - The symbol for subtraction is "-", not "is." D: Add - The symbol for addition is "+", not "is." Therefore, the correct interpretation of "is" in math is to denote equality, making choice A the correct answer.