Metric Conversions for TEAS 7

Correct Answer: C

Rationale: To convert kilograms to grams, we need to multiply the number of kilograms by 1000 since there are 1000 grams in 1 kilogram. Therefore, to find out how many grams are in 5 kilograms, we multiply 5 by 1000, which equals 5000 grams. The correct answer is C. A: 50 grams - Incorrect. 5 kilograms is equal to 5000 grams, not 50 grams. B: 500 grams - Incorrect. 5 kilograms is equal to 5000 grams, not 500 grams. D: 5 grams - Incorrect. 5 kilograms is equal to 5000 grams, not 5 grams.

Correct Answer: B

Rationale: To convert kilometers to meters, you multiply by 1000 since 1 kilometer is equal to 1000 meters. Therefore, 345 kilometers x 1000 = 345,000 meters. Choice A is incorrect as it doesn't account for the conversion factor. Choice C is incorrect as it adds an extra zero. Choice D is incorrect as it adds two extra zeros. Choice B is the correct answer as it correctly converts 345 kilometers to meters by multiplying by 1000.

Correct Answer: B

Rationale: To convert milliliters to liters, we must divide by 1000 since there are 1000 milliliters in 1 liter. Therefore, 250 milliliters divided by 1000 equals 0.25 liters (choice B). Choice A is incorrect as it is 10 times the correct answer. Choice C is incorrect as it is 5 times the correct answer. Choice D is incorrect as it is 1/10th of the correct answer. Thus, the correct conversion is 0.25 liters.

Correct Answer: B

Rationale: To convert liters to milliliters, you multiply by 1000 since there are 1000 milliliters in 1 liter. So, 0.6 liters x 1000 ml = 600 ml. Choice B (600 ml) is correct. Choice A (60 ml) is incorrect as it is 10 times less. Choice C (6 ml) is incorrect as it is 100 times less. Choice D (6000 ml) is incorrect as it is 10 times more.

Correct Answer: B

Rationale: The correct answer is B: Liters. Liters are the base unit for liquid volume in the metric system because they are used to measure larger volumes, making them more practical for everyday use. Milliliters are a smaller unit derived from liters, making them not the base unit. Gallons are not part of the metric system; they are commonly used in the imperial system. Choosing Liters again reinforces that it is the correct base unit for liquid volume in the metric system.