Common Core Standards Alignments

CCSS

CCSS.MATH.CONTENT.1.OA.C.6 - Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 – 4 = 13 – 3 – 1 = 10 – 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 – 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).

Thumbnail Image	Title	Description	Curriculum Nodes
	Worksheet: Using a Number Line to Write Addition Statements, Set 20	Worksheet: Using a Number Line to Write Addition Statements, Set 20 This is part of a collection of math worksheets on the topic of using number lines to write addition statements.	Addition Facts to 25