Practice Problems
Use each of the methods on the Multiplication Strategies Menu for Larger Numbers in the Student Activity Book at least once. Estimate to be sure your answers are reasonable.
- 6 45
- 8 32
- 5 3049
- 6 421
- 30 312
- 6 7213
- 40 2301
- 3 3008
- 60 4250
- 8 3453
- 7 3024
- 38 100
- 94 100
- 100 47
- 124 200
- Show how to solve Questions 11 and 16 using different methods than the ones you used the first time.
- Explain your estimation strategy for Question 9.
- Explain a mental math strategy for solving Question 13.
Did You Know?
Mrs. Dewey's classroom, Room 204, is in Bessie Coleman School. Bessie Coleman was the world's first African American female aviator.
When Bessie's brother returned to America after World War I, he told Bessie that French women could fly airplanes. At that time, Bessie worked as a manicurist in a Chicago barber shop. Hearing this news, Bessie decided she too could learn to fly. She went to school in Chicago to learn French. Then she went to France. In 1921 she earned her pilot's license from the Federation Aeronautique Internationale. When she returned to Chicago, she became an air circus performer. A street and a library in Chicago are named after Bessie Coleman.