First Grade Common Core Math Worksheets. Work with addition and subtraction equations. Express the length of an object as a whole number of length units, by laying multiple copies of a shorter object (the length unit) end to end;
First Grade Common Core Math Bundle Common core math worksheets, Math from www.pinterest.com
Work with addition and subtraction equations. (1) developing understanding of addition, subtraction, and strategies for addition. Express the length of an object as a whole number of length units, by laying multiple copies of a shorter object (the length unit) end to end;
