Oklahoma Academic Standards
OK.2.N. Number & Operations (N)
2.N.1. Compare and represent whole numbers up to 1,000 with an emphasis on place value and equality.
2.N.1.1. Read, write, discuss, and represent whole numbers up to 1,000. Representations may include numerals, words, pictures, tally marks, number lines and manipulatives.
2.N.2. Add and subtract one- and two-digit numbers in real-world and mathematical problems.
2.N.2.1. Use the relationship between addition and subtraction to generate basic facts up to 20.
2.N.2.2. Demonstrate fluency with basic addition facts and related subtraction facts up to 20.