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Cracking the Mental Math Code: A Repertoire of Number Sense Techniques
Amount $17.00
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Description

From those who read a poster asking them to join the school’s Number Sense team to the seasoned competitor eyeing State medals, this book serves as a guide and as inspiration, to not only pique interest but to build a foundation on. You’ll find in this b
  • mental math competitions
  • 750 problems to learn, train, and improve
  • step-by-step guide on how-to solve Number Sense problems

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