Unit 2 Review

Ethan has 3 skateboards. The blue skateboard measures 63.13 cm., the red one is 54.13 cm long, and the green one is 45.3 cm long. What is the difference between the green and the red skateboard?

Margarita paid $42.28 for 3 dolls. She paid $12.2 for the 1st doll and 20 dollars for the second doll. How much did she pay for the 3rd one?

Mars is the fourth planet in the solar system. If orbits the sun at an average rate of 53,859 miles per hour. Round this number to the nearest thousand.

Madison was playing fruit ninja. She earned 423 points in her first round and 245 points in her second round. About how many more points did she earn in her first rounds?

Keith was playing Plants vs. Zombies. His Peashooters shot 512 times on the first round and 987 on the second round. What is the approximate difference in peas shot?

Willy collected 3,542 pop tops from aluminum cans. Round this number to the nearest thousand.