# Math

Major Work of the Grade

 Third Grade Major Clusters Supporting/Additional Clusters Operations and Algebraic Thinking Represent and solve problems involving multiplication and division. Understand properties of multiplication and the relationship between multiplication and division. Multiply and divide within 100. Solve problems involving the four operations, and identify and explain patterns in arithmetic.   Number and Operations—Fractions Develop understanding of fractions as numbers.   Measurement and Data Solve problems involving measurement and estimation of intervals of time, liquid volumes, and masses of objects. Geometric measurement: understand concepts of area and relate area to multiplication and to addition. Number and Operations in Base Ten Use place value understanding and properties of operations to perform multi-digit arithmetic.   Measurement and Data Represent and interpret data. Geometric measurement: recognize perimeter as an attribute of plane figures and distinguish between linear and area measures.   Geometry Reason with shapes and their attributes.