The Common Core in North Carolina

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Skills available for North Carolina fourth-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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NC.4.OA Operations and Algebraic Thinking

  • Represent and solve problems involving multiplication and division.

    • NC.4.OA.1 Interpret a multiplication equation as a comparison. Multiply or divide to solve word problems involving multiplicative comparisons using models and equations with a symbol for the unknown number. Distinguish multiplicative comparison from additive comparison.

  • Use the four operations with whole numbers to solve problems.

    • NC.4.OA.3 Solve two-step word problems involving the four operations with whole numbers.

      • NC.4.OA.3.a Use estimation strategies to assess reasonableness of answers.

      • NC.4.OA.3.b Interpret remainders in word problems.

      • NC.4.OA.3.c Represent problems using equations with a letter standing for the unknown quantity.

  • Gain familiarity with factors and multiples.

    • NC.4.OA.4 Find all factor pairs for whole numbers up to and including 50 to:

      • NC.4.OA.4.a Recognize that a whole number is a multiple of each of its factors.

      • NC.4.OA.4.b Determine whether a given whole number is a multiple of a given one-digit number.

      • NC.4.OA.4.c Determine if the number is prime or composite.

  • Generate and analyze patterns.

    • NC.4.OA.5 Generate and analyze a number or shape pattern that follows a given rule.

NC.4.NBT Number and Operations in Base Ten

NC.4.NF Number and Operations – Fractions

NC.4.MD Measurement and Data

  • Solve problems involving measurement.

    • NC.4.MD.1 Know relative sizes of measurement units. Solve problems involving metric measurement.

      • NC.4.MD.1.a Measure to solve problems involving metric units: centimeter, meter, gram, kilogram, Liter, milliliter.

      • NC.4.MD.1.b Add, subtract, multiply, and divide to solve one-step word problems involving whole-number measurements of length, mass, and capacity that are given in metric units.

    • NC.4.MD.2 Use multiplicative reasoning to convert metric measurements from a larger unit to a smaller unit using place value understanding, two-column tables, and length models.

    • NC.4.MD.8 Solve word problems involving addition and subtraction of time intervals that cross the hour.

  • Solve problems involving area and perimeter.

  • Represent and interpret data.

    • NC.4.MD.4 Represent and interpret data using whole numbers.

      • NC.4.MD.4.a Collect data by asking a question that yields numerical data.

      • NC.4.MD.4.b Make a representation of data and interpret data in a frequency table, scaled bar graph, and/or line plot.

      • NC.4.MD.4.c Determine whether a survey question will yield categorical or numerical data.

  • Understand concepts of angle and measure angles.

    • NC.4.MD.6 Develop an understanding of angles and angle measurement.

      • NC.4.MD.6.a Understand angles as geometric shapes that are formed wherever two rays share a common endpoint, and are measured in degrees.

      • NC.4.MD.6.b Measure and sketch angles in whole-number degrees using a protractor.

      • NC.4.MD.6.c Solve addition and subtraction problems to find unknown angles on a diagram in real-world and mathematical problems.

NC.4.G Geometry

  • Classify shapes based on lines and angles in two-dimensional figures.