Skip to Content

Numbers and Operations in Base Ten


Standards in this domain:

Use place value understanding and properties of operations to perform multi-digit arithmetic.1

  • 3.NBT.A.1 Use place value understanding to round whole numbers to the nearest 10 or 100.
  • 3.NBT.A.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.A.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.

1 A range of algorithms may be used.

Printed from the Iowa Department of Education website on April 16, 2014 at 9:32am.