Student Instructions
Use the Cross-out lines to mark the place values that need to change in order to subtract.
Click through the Flipcards to find the correct way to change each place value before subtracting.
Type your answer and check your work.
Record yourself explaining how you got your answer.
Teacher Notes (not visible to students)
We use the term "unbundle" in our curriculum, but you may change it to "regroup", etc. Supplement Activity for Eureka/Bluebonnet Math Module 4, Lesson 12.