Jill has two rocks. One has a mass of 20 grams and the other has a mass of 20 kilograms. Which rock has the greater mass?

Note: 1 kg = 1000 g

Lori bought 600 grams of cayenne pepper and 2 kilograms of black pepper. How many grams of pepper did she buy in all?

Note: 1 kg = 1000 g

Lian's dog is 48 months old while her brother's dog is 5 years old. Whose dog is older?

Ken is 3 ft 3 in tall and Olivia is 40 in tall. Who is shorter?

Note: 1ft = 12 in

An alligator is 5.1 m long and a snake is 150 cm. Which one is longer?

Note: 1 m = 100 cm

The flag pole outside the school is 12 feet tall. But the school decided to change to a taller flag pole that is 14 feet tall. How much taller is the new flag pole?

Two shelves are 75cm and 87cm long. What is their total length in meters?

Note: 1 m = 100 cm

A family sets off to drive 524km. After 267km, they stopped to take a break. How much further do they have to go in meters?

Note: 1 km = 1000 m

My younger sister is 86cm tall. Our brother is twice as tall as her. How tall is he in meters?

Ana's mom has prepared three 2-L of orange juice for the upcoming party. How many liters is it in milliliters?

1 L = 1000 mL

Benjamin said, "On my third birthday, I was 45 inches tall. Now, I'm 3 inches taller." How tall is Benjamin now in feet?

1 ft = 12 in

How many kilograms are there in a half kilogram?

Jordan is aiming to migrate to Japan in 36 months. How long is this in years?

How many centimeters are there in a half meter?

Leo pours some water into a jug. He needs 750 mL but he already has 550 mL. How many more mL does he need?

Shelly purchased 40 m 200 cm long rope and Jenny purchased 16 m 370 cm long rope. What is the total length of the ropes which both of them purchased?

Jack and Abby are in swim class together. They challenged each other to see who could hold their breath underwater the longest. Jack and Abby's coach, Coach Foster, timed them with a stopwatch when they went underwater. Jack stayed underwater for 10.25 seconds, while Abby was able to stay under for 14 seconds. Who stayed underwater the longer?

Question 19

John rode 2 km on his bike. His sister, Sally rode 3000 meters on her bike. Who covered the farther distance?