Additive Thinking and Regrouping · Operations

Inverse Relationships

Exploring how addition and subtraction undo each other to check for accuracy.

Key Questions

  1. 1How can we use addition to prove that our subtraction answer is correct?
  2. 2If we know that 40 plus 60 equals 100, what two subtraction facts do we automatically know?
  3. 3Why is subtraction often considered more difficult than addition?

CBSE Learning Outcomes

CBSE: Relationship between Addition and Subtraction - Class 3
Class: Class 3
Subject: Mathematics
Unit: Additive Thinking and Regrouping
Period: Operations

Suggested Methodologies

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