Grade 6 | Unit 3 | Lesson 8: More about Constant Speed | Practice Problems

A kangaroo hops 2 kilometers in 3 minutes. How long does it take the kangaroo to travel 5 kilometers?

• 7.5 minutes

• 8 minutes

• 9 minutes

• 10 minutes

A kangaroo hops 2 kilometers in 3 minutes. How far does the kangaroo travel in 2 minutes?

• 2 kilometers

• 1.5 kilometers

Mai runs around a 400-meter track at a constant speed of 250 meters per minute. How many minutes does it take Mai to complete 4 laps of the track? Explain or show your reasoning.

At 10:00 a.m., Han and Tyler both started running toward each other from opposite ends of a 10-mile path along a river. How far does Han run after a half hour?

• 3 miles

• 2 miles

• 4 miles

At 10:00 a.m., Han and Tyler both started running toward each other from opposite ends of a 10-mile path along a river. How far does Han run after an hour?

• 5 miles

• 6 miles

• 4 miles

• 6.5 miles

At 10:00 a.m., Han and Tyler both started running toward each other from opposite ends of a 10-mile path along a river. Do Han and Tyler meet on the path within 1 hour? Explain or show your reasoning.

Two skateboarders start a race at the same time. Skateboarder A travels at a steady rate of 15 feet per second. Skateboarder B travels at a steady rate of 22 feet per second. After 4 minutes, how much farther will Skateboarder B have traveled? Explain your reasoning.

• 32 tablespoons

• 16 tablespoons

• 20 tablespoons

• 24 tablespoons

Two larger cubes are made out of unit cubes. Cube A is 2 by 2 by 2. Cube B is 4 by 4 by 4. The side length of Cube B is twice that of Cube A. Is the surface area of Cube B also twice that of Cube A? Explain or show your reasoning.

Two larger cubes are made out of unit cubes. Cube A is 2 by 2 by 2. Cube B is 4 by 4 by 4. The side length of Cube B is twice that of Cube A. Is the volume of Cube B also twice that of Cube A? Explain or show your reasoning.