Number and operations
3.2(A)Building Big Numbers Piece by Piece
Compose and decompose numbers up to 100,000 as a sum of so many ten thousands, so many thousands, so many hundreds, so many tens, and so many ones using objects, pictorial models, and numbers, including expanded notation as appropriate.
Part of The student applies mathematical process standards to represent and compare whole numbers and understand relationships related to place value
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Intro
Taking Numbers Apart
Today you will learn to compose and decompose numbers up to 100,000 using objects, pictorial models, and numbers. To decompose means to break a number into ten thousands, thousands, hundreds, tens, and ones. To compose means to put those pieces back together. Picture a big Texas rodeo with 34,251 people. Let's take that number apart.
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