http://www.corestandards.org/Math/Content/3/NF http://www.corestandards.org/Math/Content/3/NF Number & Operations—Fractions¹ 3.NF http://www.corestandards.org/Math/Content/3/NF http://www.corestandards.org/Math/Content/3/NF Number and Operations—Fractions (3-LS1-1) http://www.corestandards.org/Math/Content/3/NF http://www.corestandards.org/Math/Content/3/NF http://www.corestandards.org/Math/Content/3/NF http://www.corestandards.org/Math/Content/3/NF third grade 3.NF http://www.corestandards.org/Math/Content/3/NF 3.NF 3.NF http://www.corestandards.org/Math/Content/3/NF Number and Operations—Fractions (3-LS1-1) third grade third grade Grade 3 Number & Operations: Fractions third grade Develops an understanding of fractions http://www.corestandards.org/Math/Content/3/NF http://www.corestandards.org/Math/Content/3/NF http://www.corestandards.org/Math/Content/3/NF 3.NF http://www.corestandards.org/Math/Content/3/NF Number and Operations—Fractions (3-LS1-1) http://www.corestandards.org/Math/Content/3/NF Number and Operations—Fractions (3-LS1-1) third grade http://www.corestandards.org/Math/Content/3/NF 3.NF Number and Operations—Fractions (3-LS1-1) http://www.corestandards.org/Math/Content/3/NF Number and Operations—Fractions (3-LS1-1) http://www.corestandards.org/Math/Content/3/NF third grade