Because operations with numbers such as tens and hundreds make for simple calculations, place value plays a critical role throughout the grades in the development of computation strategies. 1 Grade 2 Grade 3 Grade 4 Grade 5 Kindergarten Students begin learning about the number sequence and about relationships among the counting words, the written numbers, and the quantities they represent. Students count by ones as they construct and compare quantities, create sets of a given size, and find how many in sets. Grade 1 Students become familiar with numbers up to about 100. They count quantities up to 50 or more, and they count orally and read, write, and sequence numbers to 100 or higher.
Students do most of their counting by ones.
They begin to develop meaning for counting by small, familiar numbers such as 2's and 4's. Students work with addition combinations of 10. They begin to learn about ways that numbers are built from tens and ones as they engage in activities such as organizing sets of objects in tens and ones and exploring patterns of tens and ones on the 100 chart. Grade 2 Students become familiar with numbers into the low hundreds. Students count by ones and by familiar numbers, such as 2's, 4's, 5's, and 10's.