Minnesota Academic Standards
MN.1.1. Number & Operation
1.1.1. Count, compare and represent whole numbers up to 120, with an emphasis on groups of tens and ones.
126.96.36.199. Read, write and represent whole numbers up to 120. Representations may include numerals, addition and subtraction, pictures, tally marks, number lines and manipulatives, such as bundles of sticks and base 10 blocks.
1.1.2. Use a variety of models and strategies to solve addition and subtraction problems in real world and mathematical contexts.
188.8.131.52. Use words, pictures, objects, length-based models (connecting cubes), numerals and number lines to model and solve addition and subtraction problems in part-part-total, adding to, taking away from and comparing situations.