Praxis CKT Math Measurement Units Length Weight Time

1. Convert 5 miles to feet. (1 mile = 5,280 feet)

26,400 feet

10,560 feet

52,800 feet

5,280 feet

To convert miles to feet, multiply the number of miles by the number of feet in one mile. Here, 5 miles multiplied by 5,280 feet per mile equals 26,400 feet (5 x 5,280 = 26,400). Thus, 5 miles is equivalent to 26,400 feet.

Explanation

To convert miles to feet, multiply the number of miles by the number of feet in one mile. Here, 5 miles multiplied by 5,280 feet per mile equals 26,400 feet (5 x 5,280 = 26,400). Thus, 5 miles is equivalent to 26,400 feet.

2. How many centimeters are in 2.5 meters?

25 cm

250 cm

2,500 cm

0.25 cm

To convert meters to centimeters, you multiply the number of meters by 100, since 1 meter equals 100 centimeters. Therefore, 2.5 meters multiplied by 100 equals 250 centimeters.

Explanation

To convert meters to centimeters, you multiply the number of meters by 100, since 1 meter equals 100 centimeters. Therefore, 2.5 meters multiplied by 100 equals 250 centimeters.

3. A package weighs 3.5 kilograms. What is its weight in grams?

350 g

3,500 g

35,000 g

0.35 g

To convert kilograms to grams, multiply the weight in kilograms by 1,000, since there are 1,000 grams in a kilogram. Therefore, 3.5 kilograms multiplied by 1,000 equals 3,500 grams.

Explanation

To convert kilograms to grams, multiply the weight in kilograms by 1,000, since there are 1,000 grams in a kilogram. Therefore, 3.5 kilograms multiplied by 1,000 equals 3,500 grams.

4. Convert 120 minutes to hours.

1.2 hours

2 hours

12 hours

0.2 hours

To convert minutes to hours, divide the number of minutes by 60, as there are 60 minutes in an hour. Thus, 120 minutes divided by 60 equals 2 hours. This calculation shows the correct conversion from minutes to hours.

Explanation

To convert minutes to hours, divide the number of minutes by 60, as there are 60 minutes in an hour. Thus, 120 minutes divided by 60 equals 2 hours. This calculation shows the correct conversion from minutes to hours.

5. Which measurement is longer: 100 inches or 8 feet?

100 inches

8 feet

They are equal

Cannot be determined

To compare the two measurements, convert 8 feet to inches. Since 1 foot equals 12 inches, 8 feet equals 96 inches (8 x 12 = 96). Therefore, 100 inches is longer than 8 feet, which confirms that 100 inches is indeed the greater measurement.

Explanation

To compare the two measurements, convert 8 feet to inches. Since 1 foot equals 12 inches, 8 feet equals 96 inches (8 x 12 = 96). Therefore, 100 inches is longer than 8 feet, which confirms that 100 inches is indeed the greater measurement.

6. A recipe calls for 500 milliliters of milk. How many liters is this?

0.5 liters

5 liters

50 liters

5,000 liters

To convert milliliters to liters, divide the number of milliliters by 1,000. Since 500 milliliters divided by 1,000 equals 0.5 liters, the recipe requires half a liter of milk. This conversion is essential for accurate measurements in cooking.

Explanation

To convert milliliters to liters, divide the number of milliliters by 1,000. Since 500 milliliters divided by 1,000 equals 0.5 liters, the recipe requires half a liter of milk. This conversion is essential for accurate measurements in cooking.

7. Convert 3 hours and 45 minutes to minutes only.

165 minutes

180 minutes

225 minutes

345 minutes

To convert hours and minutes to minutes only, multiply the hours by 60 and add the remaining minutes. In this case, 3 hours equals 180 minutes (3 x 60), and adding the 45 minutes gives a total of 225 minutes (180 + 45).

Explanation

To convert hours and minutes to minutes only, multiply the hours by 60 and add the remaining minutes. In this case, 3 hours equals 180 minutes (3 x 60), and adding the 45 minutes gives a total of 225 minutes (180 + 45).

8. If a car travels 60 miles per hour, how far does it travel in 2.5 hours?

24 miles

60 miles

150 miles

240 miles

To find the distance traveled, multiply the speed by the time. At 60 miles per hour for 2.5 hours, the calculation is 60 miles/hour × 2.5 hours = 150 miles. This shows that the car covers 150 miles in that duration.

Explanation

To find the distance traveled, multiply the speed by the time. At 60 miles per hour for 2.5 hours, the calculation is 60 miles/hour × 2.5 hours = 150 miles. This shows that the car covers 150 miles in that duration.

9. A person weighs 150 pounds. Approximately how many kilograms is this? (1 kg ≈ 2.2 lbs)

32 kg

68 kg

75 kg

330 kg

To convert pounds to kilograms, divide the weight in pounds by the conversion factor (2.2 lbs/kg). For a weight of 150 pounds, the calculation is 150 ÷ 2.2, which equals approximately 68 kg. This shows that 150 pounds is roughly equivalent to 68 kilograms.

Explanation

To convert pounds to kilograms, divide the weight in pounds by the conversion factor (2.2 lbs/kg). For a weight of 150 pounds, the calculation is 150 ÷ 2.2, which equals approximately 68 kg. This shows that 150 pounds is roughly equivalent to 68 kilograms.

10. How many seconds are in 1 hour?

360 seconds

600 seconds

3,600 seconds

36,000 seconds

There are 60 minutes in an hour, and each minute contains 60 seconds. To find the total number of seconds in an hour, multiply the number of minutes by the number of seconds per minute: 60 minutes × 60 seconds/minute = 3,600 seconds.

Explanation

There are 60 minutes in an hour, and each minute contains 60 seconds. To find the total number of seconds in an hour, multiply the number of minutes by the number of seconds per minute: 60 minutes × 60 seconds/minute = 3,600 seconds.

11. Convert 0.75 kilometers to meters.

7.5 meters

75 meters

750 meters

7,500 meters

To convert kilometers to meters, multiply the number of kilometers by 1,000, since 1 kilometer equals 1,000 meters. Therefore, 0.75 kilometers multiplied by 1,000 equals 750 meters.

Explanation

To convert kilometers to meters, multiply the number of kilometers by 1,000, since 1 kilometer equals 1,000 meters. Therefore, 0.75 kilometers multiplied by 1,000 equals 750 meters.

12. A box has dimensions 2 feet long, 18 inches wide, and 12 inches tall. What is the width in feet?

0.5 feet

1 foot

1.5 feet

2 feet

To convert the width from inches to feet, divide the width in inches (18 inches) by 12 (the number of inches in a foot). This gives 18 ÷ 12 = 1.5 feet. Thus, the width of the box is 1.5 feet.

Explanation

To convert the width from inches to feet, divide the width in inches (18 inches) by 12 (the number of inches in a foot). This gives 18 ÷ 12 = 1.5 feet. Thus, the width of the box is 1.5 feet.