National Security Agency
Borrowing from Our Neighbors
Young mathematicians explore two-digit subtraction. They will investigate multiple ways to subtract numbers involving regrouping. Resources are provided.
Curated OER
Rings Around the Racetrack
Students determine the number of laps a driver would need to complete the Indy 500. They calculate the length of time it would take to complete the race at different rates of speed.
Curated OER
Estimate or Compute?
In this computation and estimation worksheet, learners take turns with a partner, read the first problem, and determine if the problem requires estimation or computation and circle the matching letter. Students then solve the word...