standard_description: Understand subtraction as an unknown-addend problem. For example, subtract 10 – 8 by finding the number that makes 10 when added to 8.
problem_activity: Stage 4: Divide within 100
Required Preparation
Materials to Copy
Blackline Masters
Compare Stage 4 Division Cards
Compare Stage 3-8 Directions

Narrative
Students use cards with division expressions within 100.
This stage of the Compare center is used in grades 3, 4, and 5. When used in grade 3 or 4, remove the cards with two-digit divisors.


aligns: no