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This Concept Map, created with IHMC CmapTools, has information related to: place value, Second Grade Place Value defined as value of the position of a digit in a number, digit value understands bundle of ten ones equals one ten, Second Grade Place Value contains digit identity, Second Grade Place Value results in problem solving, value of the position of a digit in a number uses number sense, algebriac thinking builds understanding addition and subtraction operations, value of the position of a digit in a number same as digit value, number sense includes classroom routines, problem solving uses prior knowledge, prior knowledge builds number sense, Second Grade Place Value results in algebriac thinking, how to count by 1s, 5s, 10, 100s includes on the decade & off the decade, digit identity knows how to count by 1s, 5s, 10, 100s, bundle of ten ones equals one ten includes base 10 system, digit value understands bundle of ten tens equals one hundred, Second Grade Place Value contains digit value