Students should use their knowledge of numbers to either compose numbers, combining parts or smaller values to form a number, or decompose numbers, breaking a number into parts or smaller values, using objects and pictures.
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K.2 Number and operations. The student applies mathematical process standards to understand how to represent and compare whole numbers, the relative position and magnitude of whole numbers, and relationships within the numeration system. The student is expected to:
(I) compose and decompose numbers up to 10 with objects and pictures.