The Common Core in Missouri

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Skills available for Missouri third-grade math standards

Standards are in black and IXL math skills are in dark green. Hold your mouse over the name of a skill to view a sample question. Click on the name of a skill to practice that skill.

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NS Number Sense

NBT Number Sense and Operations in Base Ten

NF Number Sense and Operations in Fractions

RA Relationships and Algebraic Thinking

GM Geometry and Measurement

  • GM.A Reason with shapes and their attributes.

    • GM.A.1 Understand that shapes in different categories may share attributes and that the shared attributes can define a larger category.

    • GM.A.2 Distinguish rhombuses and rectangles as examples of quadrilaterals, and draw examples of quadrilaterals that do not belong to these subcategories.

    • GM.A.3 Partition shapes into parts with equal areas, and express the area of each part as a unit fraction of the whole.

  • GM.B Solve problems involving the measurement of time, liquid volumes and weights of objects.

    • GM.B.1 Tell and write time to the nearest minute.

    • GM.B.2 Estimate time intervals in minutes.

    • GM.B.3 Solve problems involving addition and subtraction of minutes.

    • GM.B.4 Measure or estimate length, liquid volume and weight of objects.

    • GM.B.5 Use the four operations to solve problems involving lengths, liquid volumes or weights given in the same units.

  • GM.C Understand concepts of area.

  • GM.D Understand concepts of perimeter.

    • GM.D.1 Solve problems involving perimeters of polygons.

    • GM.D.2 Understand that rectangles can have equal perimeters but different areas, or rectangles can have equal areas but different perimeters.

DS Data and Statistics

  • DS.A Represent and analyze data.

    • DS.A.1 Create frequency tables, scaled picture graphs and bar graphs to represent a data set with several categories.

    • DS.A.2 Solve one- and two-step problems using information presented in bar and/or picture graphs.

    • DS.A.3 Create a line plot to represent data.

    • DS.A.4 Use data shown in a line plot to answer questions.