South Carolina Grade 3 math standards
The Grade 3 math outcomes we teach, in the standards's own words, with the lessons and practice pages for each. Pick an outcome code for the full list of lessons and printables.
South Carolina College- and Career-Ready Standards for Mathematics (2025).
3.MGSR.1.1 Determine the area of squares and rectangles presented in relevant problems by covering the space with square units and counting the total number of units needed.
Practice: Fence It, Fill It: Area and Perimeter workbook · Grade 3 Common Core Math: Geometry and Measurement
3.MGSR.1.2 Determine the perimeter of regular and irregular triangles and quadrilaterals with known side lengths.
Practice: Fence It, Fill It: Area and Perimeter workbook · Grade 3 Common Core Math: Patterns and Algebraic Thinking · Grade 3 Common Core Math: Geometry and Measurement · Grade 5 Common Core Math: Geometry and Measurement
3.MGSR.2.2 Use analog and digital clocks to tell and record time to 1-minute intervals, identifying AM and PM.
Practice: Measure It: Length, Time and Mass in the Real World workbook · Grade 3 Common Core Math: Geometry and Measurement · Grade 4 Common Core Math: Geometry and Measurement · Grade 4 Time and Measurement Word Problems (Common Core)
3.NR.1.4 Round whole numbers from 0 to 1,000 to the nearest 10 or 100.
3.PAFR.1.3 Multiply two whole numbers from 0 to 10 and divide using related facts flexibly and accurately.
Practice: Grade 3 Common Core Math: Number and Operations · Grade 4 Common Core Math: Number and Operations · Grade 5 Common Core Math: Number and Operations
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