Third Grade Number and Operations in Base Ten Standards

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Third Grade Math: Number and Operations in Base Ten  Standards

Use place value understanding and properties of operations to perform multi-digit arithmetic.

  • 3.NBT.1. Use place value understanding to round whole numbers to the nearest 10 or 100.
  • 3.NBT.2. Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
  • 3.NBT.3. Multiply one-digit whole numbers by multiples of 10 in the range 10–90 (e.g., 9 × 80, 5 × 60) using strategies based on place value and properties of operations.