Additive Thinking and Operations · Number and Algebra

Mental Strategies for Small Sums

Building fluency with doubles, near-doubles, and bridging to ten.

Key Questions

  1. 1How does knowing our doubles help us solve harder addition problems?
  2. 2Why is ten such a helpful 'anchor' number when adding?
  3. 3Which strategy is more efficient for adding 9 plus 5?

ACARA Content Descriptions

AC9M1N03AC9M1A02
Year: Year 1
Subject: Mathematics
Unit: Additive Thinking and Operations
Period: Number and Algebra

Suggested Methodologies

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