Nebraska Core Academic Content Standards
NE.MA.3.1. NUMBER: Students will communicate number sense concepts using multiple representations to reason, solve problems, and make connections within mathematics and across disciplines.
MA.3.1.1. Numeric Relationships: Students will demonstrate, represent, and show relationships among whole numbers and simple fractions within the base-ten number system.
MA.3.1.1.a. Read, write and demonstrate multiple equivalent representations for numbers up to 100,000 using objects, visual representations, including standard form, word form, expanded form, and expanded notation.
MA.3.1.2. Operations: Students will demonstrate the meaning of multiplication and division with whole numbers and compute accurately.
MA.3.1.2.a. Add and subtract within 1,000 with or without regrouping.
MA.3.1.2.b. Select and apply the appropriate methods of computation when solving one- and two- step addition and subtraction problems with four-digit whole numbers through the thousands (e.g., visual representations, mental computation, paper-pencil).