R. Estimate Reading Minutes
Show or tell how you solve each problem. Use the Addition Strategies Menu and the Subtraction Strategies Menu for Larger Numbers in the Student Activity Book Reference section.
- Julia read 288 minutes in May. Fern read 531. Estimate how many fewer minutes Julia read than Fern.
- Ms. Alfonso's class read 1274 minutes. Mr. Martins's class read 868 minutes. Estimate how many minutes the two classes read in all.