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- Choose one of the three estimation strategies: Carla's, Levi's, or Sara's. Work with a partner. Describe what you think they are thinking. You may use numbers, number lines, pictures, base-ten shorthand, or words to help you.
- All the third-grade classes at Bessie Coleman School are taking part in the sports day. Each student will wear a green headband. There are 26 students in Mrs. Hunter's class, 23 students in Mr. Martin's class, and 19 students in Ms. Alfonso's class. If the school bought 80 headbands, will there be enough? How do you know?
- The students from Lincoln and Clark Schools are coming in buses. Each bus holds 50 students. How many buses will they need? Show or tell how you decided.
Check-In: Questions 5–7
The coach from Lincoln School looked at the sports day attendance for last year. He put the data in the table below.
Use the numbers in the table to solve these problems. Show your strategy.
- About how many students attended sports day last year?
- The coach bought bottles of water. The bottles came in crates of 100 bottles. How many crates did she need for all the schools?
- Each Lincoln School student wore two blue wrist bands. About how many did they have?