Texas Essential Knowledge and Skills (TEKS)
TX. 111.5. Grade 3, Adopted 2012.
3.2. Number and operations. The student applies mathematical process standards to represent and compare whole numbers and understand relationships related to place value. The student is expected to:
3.2 (C) Represent a number on a number line as being between two consecutive multiples of 10; 100; 1,000; or 10,000 and use words to describe relative size of numbers in order to round whole numbers.
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 (B) Round to the nearest 10 or 100 or use compatible numbers to estimate solutions to addition and subtraction problems.