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Number and Operations Lessons

Math Lessons | Reading Lessons

Smart Tutor’s Number and Operations curriculum is designed to help students understand numbers, ways of representing numbers, relationships among numbers, number systems and operations and algebraic thinking. Interactive, audio-supported lessons help students master key skills including the ability to:


Number and Operations
Number and Operations kindergarten
Number and Operations first grade
Number and Operations second grade
Number and Operations third grade
Number and Operations fourth grade
Number and Operations fifth grade
Number and Operations


  • Understand place value structure of the base-10 number system
  • Compare, order and formulate equivalent representations of whole numbers, fractions, decimals and percent through the use of models and number lines
  • Develop understanding of fractions as part of a whole, part of a set and as division of whole numbers
  • Use interactive media and real-life situations to make reasonable estimates to solve problems
  • Gain number sense through an understanding of addition, subtraction, multiplication and division including their different meanings, effects, properties and the relationships to one another
  • Develop fluency with basic number combinations for addition, subtraction, multiplication and division
  • Develop and use strategies to estimate the result of whole number computations
  • Explore number theory by classifying numbers according to their factors and multiples


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