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Calculating Complements to 100
Addition & Subtraction
Year 3
Curriculum
3AS–1: Calculate complements to 100.
Mastering this skill aids in mental arithmetic, enhancing the ability to quickly determine the difference needed to reach a sum of 100.
Mastering this skill aids in mental arithmetic, enhancing the ability to quickly determine the difference needed to reach a sum of 100.
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Resources
Required Topics
Adjusting Two-digit Numbers by Ones or TensNext Topics
Applying Scaling by Fractions