Texas Essential Knowledge and Skills (TEKS):
3.2.A

compose and decompose numbers up to 100,000 as a sum of so many ten thousands, so many thousands, so many hundreds, so many tens, and so many ones using objects, pictorial models, and numbers, including expanded notation as appropriate;

Texas Essential Knowledge and Skills (TEKS):
3.2.B

describe the mathematical relationships found in the base-10 place value system through the hundred thousands place;