Term A · Chapter 3 · Lesson 1
Addition with Regrouping
When a column has ten or more units, exchange ten for one unit of the next place.
MATH-3A-C03-L0135–45 minutes · flexible
Today's challenge
Add 958 and 1,757. Explain one exchange of ten units. Try your own method, then compare it with a model.
What you'll learn
- When a column has ten or more units, exchange ten for one unit of the next place.
- Explain the connection between a diagram and a number sentence.
- Solve a fresh application without step-by-step hints.
Before this lesson
No student records are transmitted or stored on a server.