Texas Essential Knowledge and Skills (TEKS)
TX. 111.5. Grade 3, Adopted 2012.
3.4. Number and operations. The student applies mathematical process standards to develop and use strategies and methods for whole number computations in order to solve problems with efficiency and accuracy. The student is expected to:
3.4 (A) Solve with fluency one-step and two-step problems involving addition and subtraction within 1,000 using strategies based on place value, properties of operations, and the relationship between addition and subtraction.