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.2.6. Use concrete models and structured arrangements, such as repeated addition, arrays and ten frames to develop understanding of multiplication.