Maths Library United States Grade 3 Grade 3 math, age 8 to 9 In Grade 3, students develop an understanding of multiplication and division within 100 through arrays, equal groups, and related fact families. They build a foundational concept of fractions as numbers on a number line and work with fraction equivalence and comparison. Measurement focuses on calculating area and perimeter of plane figures, telling time to the nearest minute, and interpreting scaled bar and picture graphs.
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Equivalent levels Topics Number Algebra Fractions Measurement Statistics Geometry Curriculum items Indicative, from Common Core State Standards. See the official document for the authoritative text.
3.OA.A.1 Interpret products of whole numbers using equal groups, arrays, and repeated addition.3.OA.C.7 Multiply and divide fluently within 100 using known strategies and basic facts.3.OA.D.8 Solve two-step word problems involving the four operations and assess the reasonableness of answers.3.NBT.A.1 Round whole numbers to the nearest 10 or 100 using place value understanding.3.NBT.A.2 Add and subtract whole numbers fluently within 1,000 using standard column algorithms and place value strategies.3.NF.A.1 Understand a unit fraction 1/b as one part of a whole divided into b equal parts.3.NF.A.3 Recognize and generate simple equivalent fractions and compare fractions with the same numerator or denominator.3.MD.A.1 Tell and write time to the nearest minute and solve word problems involving time intervals.3.MD.B.3 Draw and interpret scaled picture graphs and bar graphs to solve one- and two-step problems.3.MD.C.7 Relate area to multiplication and addition by tiling rectangles and finding areas of rectilinear shapes.3.MD.D.8 Solve real-world problems involving perimeters of polygons, including finding unknown side lengths.3.G.A.1 Classify two-dimensional shapes into categories based on shared attributes like sides and angles. Previous: Grade 2 | Next: Grade 4