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Making Benchmark or Friendly Numbers Addition Strategy - YouTube
Multiplication friendly Addition and subtraction strategies for number fact fluency Making benchmark or friendly numbers addition strategy
Using friendly numbers: an addition strategy
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Using Friendly Numbers: An Addition Strategy - Shelley Gray
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Friendly Number Strategy for Multiplication | Math, Elementary Math
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Making Benchmark or Friendly Numbers Addition Strategy - YouTube
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Addition and Subtraction Strategies for Number Fact Fluency - Teaching