Nebraska Core Academic Content Standards
NE.MA.2.1. NUMBER: Students will communicate number sense concepts using multiple representations to reason, solve problems, and make connections within mathematics and across disciplines.
MA.2.1.1. Numeric Relationships: Students will demonstrate, represent, and show relationships among whole numbers within the base-ten number system.
MA.2.1.1.c. Demonstrate that each digit of a three-digit number represents amounts of hundreds, tens and ones (e.g., 387 is 3 hundreds, 8 tens, 7 ones).
MA.2.1.1.d. Demonstrate that 100 represents a group of ten tens.