Additive Thinking and Strategy · Addition and Subtraction
Checking for Accuracy
Using the inverse operation to verify results and identify errors in calculation.
Key Questions
- 1How can we be sure our answer is correct without asking a teacher?
- 2What is the most efficient way to check a long string of additions?
- 3If an answer looks too big or too small, what might have gone wrong in the process?
National Curriculum Attainment Targets
KS1: Mathematics - Addition and Subtraction
Year: Year 2
Subject: Mathematics
Unit: Additive Thinking and Strategy
Period: Addition and Subtraction
Suggested Methodologies
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