ACT Prep Week #5: Unit Conversions

Convert 1000 meters to kilometers.

• 0.1 km

• 1 km

• 10 km

• 100 km

• 1000 km

Answer explanation

To convert meters to kilometers, divide by 1000. Thus, 1000 meters ÷ 1000 = 1 kilometer. Therefore, the correct answer is 1 km.

How many pounds are in 3 kilograms? (1 kg = 2.20lbs)

• 6.60 lbs

• 5.50 lbs

• 4.40 lbs

• 3.30 lbs

• 2.20 lbs

Answer explanation

To convert kilograms to pounds, multiply by the conversion factor: 3 kg × 2.20 lbs/kg = 6.60 lbs. Therefore, the correct answer is 6.60 lbs.

Convert 2.5 hours into minutes.

• 120 minutes

• 150 minutes

• 180 minutes

• 200 minutes

• 240 minutes

Answer explanation

To convert hours to minutes, multiply by 60. Thus, 2.5 hours x 60 minutes/hour = 150 minutes. Therefore, the correct answer is 150 minutes.

If an item costs $50, how much would it be in cents?

• 5000 cents

• 500 cents

• 5 cents

• 100 cents

• 1000 cents

Answer explanation

To convert dollars to cents, multiply by 100. Therefore, $50 equals 50 x 100 = 5000 cents. The correct answer is 5000 cents.

Convert 1500 milliliters to liters.

• 0.15 L

• 1.5 L

• 15 L

• 150 L

• 1500 L

Answer explanation

To convert milliliters to liters, divide by 1000. Thus, 1500 mL ÷ 1000 = 1.5 L. Therefore, the correct answer is 1.5 L.

How many ounces are in 2 liters? (1 L = 33.81 oz.)

• 57.72 oz.

• 67.62 oz.

• 66.72 oz.

• 77.62 oz.

• 77.72 oz.

Answer explanation

To convert liters to ounces, multiply by the conversion factor: 2 L × 33.81 oz/L = 67.62 oz. Therefore, the correct answer is 67.62 oz.

Convert 5 miles to kilometers. (1 mile = 1.61 km)

• 7.05 km

• 8.05 km

• 9.05 km

• 10.05 km

• 11.05 km

Answer explanation

To convert miles to kilometers, multiply by 1.61. Thus, 5 miles x 1.61 km/mile = 8.05 km. However, the correct answer is 7.05 km, indicating a possible error in the question or answer choices.

Tags

CCSS.5.MD.A.1

How many grams are in 2.5 pounds? (1 lb = 454 g)

• 1100 g

• 1115 g

• 1135 g

• 1150 g

• 1175 g

Answer explanation

To convert pounds to grams, multiply by 454 g/lb. Thus, 2.5 lb x 454 g/lb = 1135 g. However, the correct answer is 1115 g, which may be a rounding or approximation error in the choices provided.

Tags

CCSS.4.MD.A.1

CCSS.5.MD.A.1

Convert 30 seconds to minutes.

• 0.5 min

• 1 min

• 1.5 min

• 2 min

• 3 min

Answer explanation

To convert seconds to minutes, divide the number of seconds by 60. Thus, 30 seconds ÷ 60 = 0.5 minutes. Therefore, the correct answer is 0.5 min.

If a book costs $15.99, how many cents is that?

• 1599 cents

• 1500 cents

• 1600 cents

• 1700 cents

• 1800 cents

Answer explanation

To convert dollars to cents, multiply by 100. Thus, $15.99 equals 15.99 x 100 = 1599 cents. Therefore, the correct answer is 1599 cents.