CCSS.NCEX.Math.Content.3.NBT.A - Use place value understanding to add and subtract.
- CCSS.NCEX.Math.Content.3.NBT.A.1 - Use a number line (0-30) to determine the number 1 more and 1 less and 2 more and 2 less.
- CCSS.NCEX.Math.Content.3.NBT.A.2 - Illustrate ten and some more with numbers 11-30 using objects (bundles of ten).
- CCSS.NCEX.Math.Content.3.NBT.A.3 - Use part-part-whole relationships (including 2 or more parts), to compose and decompose numbers (0-30).
- CCSS.NCEX.Math.Content.3.NBT.A.4 - Compare numbers (0-30) in relationship to benchmark numbers 5 and 10.
- CCSS.NCEX.Math.Content.3.NBT.A.5 - Compare sets of objects (0-30) by their relative magnitude (e.g., more, less, equal, one more, one less, bigger, smaller).
- CCSS.NCEX.Math.Content.3.NBT.A.6 - Use estimation to determine if a set of objects is
- CCSS.NCEX.Math.Content.3.NBT.A.7 - Use language and symbols (subtract, add, equal) to describe addition and subtraction problems.
- CCSS.NCEX.Math.Content.3.NBT.A.8 - Use addition and subtraction symbols in solving problems up to 30.