PA.2.1. Numbers, Number Systems and Number Relationships
2.1.1.A. Demonstrate the relationship between numbers and quantities, including place value, one-to-one correspondence, rote counting, counting by twos to 20, counting by tens and fives, and comparing values of whole numbers up to 100.
2.1.1.D. Apply place value concepts and base-ten numeration to order and compare whole numbers up to 100.
PA.2.11. Concepts of Calculus
2.11.1.A. Order whole numbers, 0 to 100, with least to greatest value.
PA.2.2. Computation and Estimation
2.2.1.A. Apply concepts of addition and subtraction to solve problems up to ten.
2.2.1.B. Demonstrate strategies for addition and subtraction in order to solve single- and double-digit addition and subtraction problems.