Add/Sub Decimal Error Analysis Activity ✨

Help students identify and correct common decimal mistakes through structured error analysis, mathematical reasoning, and real-world problem solving.

This activity encourages students to:

• analyze incorrect work,

• explain mathematical reasoning,

• identify operational mistakes,

• and determine whether answers make sense using estimation.

Includes:

• student error analysis activity

• answer key

• grading rubric

Skills Covered:

• regrouping

• decimal alignment

• operational vocabulary

• estimation

• mathematical reasoning

• self-checking strategies

Perfect for:

• 6th grade math

• intervention

• reteaching

• math centers

• homeschool learning

• test prep