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North Carolina Standards

North Carolina 4th Grade Math Standards

All 25 North Carolina math standards for 4th grade, each explained in plain English. The official wording is in North Carolina Department of Public Instruction's document, linked at the end of this page.

25 standards

Operations and Algebraic Thinking

4 standards
NC.4.OA.1
Treat a multiplication like 35 = 5 x 7 as a comparison, solve times-as-many story problems with models and equations, and tell them apart from how-many-more ones.
NC.4.OA.3
Solve two-step story problems with all four operations, estimating to check, making sense of remainders, and writing equations with a letter for the unknown.
NC.4.OA.4
List every factor pair of a whole number up to 50, and use them to spot multiples of one-digit numbers and tell whether the number is prime or composite.
NC.4.OA.5
Create and study a number or shape pattern from a given rule, like start at 3 and add 4, noticing features such as all the terms being odd.

Number and Operations in Base Ten

6 standards
NC.4.NBT.1
Explain that a digit is worth ten times as much as the same digit one place to its right, for numbers up to 100,000, like 700 being 10 x 70.
NC.4.NBT.2
Read and write whole numbers up to 100,000 as numerals, in words and in expanded form, like 52,316 = 50,000 + 2,000 + 300 + 10 + 6.
NC.4.NBT.7
Compare two whole numbers up to 100,000 by checking digits place by place from the left, and record it with >, = or <, like 45,210 > 45,120.
NC.4.NBT.4
Use the standard algorithm to add and subtract whole numbers up to 100,000, understanding regrouping in place value terms, like 40,215 - 18,736.
NC.4.NBT.5
Multiply up to a three-digit number by a one-digit number, and two two-digit numbers, using area models, partial products and properties, linking them to the algorithm.
NC.4.NBT.6
Divide numbers up to three digits by one-digit divisors, finding quotients and remainders with arrays, area models, partial quotients or repeated subtraction.

Number and Operations – Fractions

6 standards
NC.4.NF.1
Use area and length models to explain why two fractions are equal, like 1/2 = 3/6, showing more parts of a smaller size cover the same amount.
NC.4.NF.2
Compare and justify two fractions of the same whole, like 3/5 < 5/8, with denominators of 2, 3, 4, 5, 6, 8, 10, 12 or 100, using models, benchmarks or common parts.
NC.4.NF.3
Split fractions into sums in more than one way, like 3/8 = 1/8 + 2/8, and add and subtract fractions and mixed numbers with like denominators, including story problems.
NC.4.NF.4
Multiply a whole number by a fraction less than one, seeing 3 x 2/5 as 6 x 1/5, and solve story problems that multiply a fraction by a whole number.
NC.4.NF.6
Write fractions as decimals, link tenths and hundredths, like 3/10 = 30/100 = 0.30, and add tenths to hundredths, like 3/10 + 4/100 = 34/100.
NC.4.NF.7
Compare two decimals to the hundredths, like 0.6 > 0.45, using models to reason about size and checking both refer to the same whole.

Measurement and Data

6 standards
NC.4.MD.1
Know how metric units compare in size, and measure and solve one-step story problems with centimeters, meters, grams, kilograms, liters and milliliters.
NC.4.MD.2
Convert metric measurements from bigger to smaller units by multiplying, using place value and two-column tables, like 3 kilograms = 3,000 grams.
NC.4.MD.8
Solve story problems that add or subtract amounts of time crossing the hour, like when a 45-minute movie starting at 2:30 will end.
NC.4.MD.3
Find areas of shapes made of rectangles, use area and perimeter formulas for rectangles, and explore how a fixed area can have different perimeters and the reverse.
NC.4.MD.4
Ask a question that yields numbers, show the data in a frequency table, scaled bar graph or line plot, and tell whether a survey question gives numbers or categories.
NC.4.MD.6
Understand angles as two rays from one endpoint measured in degrees, measure and draw them with a protractor, and add or subtract to find unknown angles.

Geometry

3 standards
NC.4.G.1
Draw and name the basic parts of geometry, like points, rays, segments, angles, and lines that cross at right angles or never meet.
NC.4.G.2
Sort triangles and four-sided shapes by their angles, side lengths, and whether they have parallel or perpendicular sides, like a right triangle or a trapezoid.
NC.4.G.3
Spot figures that have line symmetry, and find and draw each line that folds a figure into matching halves.

The official North Carolina documents

The plain-English lines on this page are EMStudio's own explanations of North Carolina's standards, not the official wording, which North Carolina Department of Public Instruction publishes in the documents above. Codes and strand names identify each standard.