TEAS Practice Test Math

Correct Answer: A

Rationale: The correct answer is A because an equivalent fraction is a fraction that represents the same value as another fraction. To find an equivalent fraction, you can multiply or divide both the numerator and denominator by the same number. This maintains the fraction's value while changing its appearance. Choices B and C are incorrect because the size of a fraction is not determined by its equivalent status. Choice D is incorrect because equivalent fractions can have different numerators.

Correct Answer: C

Rationale: To convert liters to milliliters, you need to multiply by 1000 since there are 1000 milliliters in 1 liter. So, for 3.2 liters, you would calculate 3.2 x 1000 = 3200 milliliters. Therefore, the correct answer is C (3200). Choice A (0.32) is incorrect because it miscalculates the conversion. Choice B (32) is incorrect as it only accounts for liters, not milliliters. Choice D (320) is incorrect as it doesn't convert liters to milliliters accurately.

Correct Answer: C

Rationale: To find the amount of sugar needed for 0.625 of the recipe, you multiply 0.375 (original amount) by 0.625 (desired portion). 0.375 x 0.625 = 0.234375 cups. Therefore, you should use 0.234375 cups of sugar. Choice A is incorrect as it adds the original and desired portions. Choice B is close but not the correct calculation. Choice D is way off, likely a miscalculation.

Correct Answer: C

Rationale: The correct answer is C because it demonstrates a negative correlation between two variables. As tennis balls age, they tend to have less bounce, indicating that an increase in one variable (age) leads to a decrease in the other variable (bounce). This negative correlation shows an inverse relationship between the age of the tennis balls and their bounce level. Choices A, B, and D do not demonstrate a negative correlation as they either show a positive correlation or do not show a correlation at all between the variables mentioned.

Correct Answer: A

Rationale: The correct answer is A because an exponent is a number that indicates how many times a base number is multiplied by itself. For example, in 2^3, 3 is the exponent telling us to multiply 2 by itself 3 times. Choice B is incorrect because an exponent is not the number being multiplied, but the number indicating how many times to multiply. Choice C is incorrect as an exponent does not involve division. Choice D is incorrect as it refers specifically to squaring a number, whereas exponents can apply to any power beyond just squaring.