# Fourth grade

Here is a list of all of the skills students learn in fourth grade! These skills are organized into categories, and you can move your mouse over any skill name to view a sample question. To start practicing, just click on any link. IXL will track your score, and the questions will automatically increase in difficulty as you improve!

## Number sense

## Addition

- B.1Add numbers up to millions
- B.2Add numbers up to millions: word problems
- B.3Addition: fill in the missing digits
- B.4Properties of addition
- B.5Add 3 or more numbers up to millions
- B.6Addition patterns over increasing place values
- B.7Choose numbers with a particular sum
- B.8Estimate sums
- B.9Estimate sums: word problems

## Subtraction

## Multiplication

- D.1Multiplication facts to 12
- D.2Missing factors - facts to 12
- D.3Choose the multiples of a given number up to 12
- D.4Identify factors
- D.5Multiply 1-digit numbers by larger numbers
- D.6Multiplication patterns over increasing place values
- D.7Properties of multiplication
- D.8Estimate products
- D.9Estimate products: word problems
- D.10Multiply a 2-digit number by a 2-digit number: complete the missing steps
- D.11Multiply a 2-digit number by a 2-digit number
- D.12Multiply a 2-digit number by a 2-digit number: word problems
- D.13Choose numbers with a particular product
- D.14Multiply a 2-digit number by a larger number: complete the missing steps
- D.15Multiply a 2-digit number by a larger number
- D.16Multiply a 2-digit number by a larger number: word problems
- D.17Multiply numbers ending in zeroes
- D.18Multiply numbers ending in zeroes: word problems
- D.19Multiply 3 numbers up to 2 digits each
- D.20Inequalities with multiplication

## Division

- E.1Division facts to 12
- E.2Division facts to 12: word problems
- E.3Properties of division
- E.4Divide larger numbers, one-digit divisors
- E.5Divide larger numbers, one-digit divisors: word problems
- E.6Divide by 1-digit numbers: complete the table
- E.7Divide by 1-digit numbers: interpret remainders
- E.8Choose numbers with a particular quotient
- E.9Divide numbers ending in zeroes, one-digit divisors
- E.10Estimate quotients, one-digit divisors
- E.11Divisibility rules
- E.12Division patterns over increasing place values
- E.13Divide numbers ending in zeroes, multi-digit divisors
- E.14Divide numbers ending in zeroes, multi-digit divisors: word problems
- E.15Divide 2-digit numbers by multiples of 10
- E.16Divide by 2-digit numbers
- E.17Divide by 2-digit numbers: word problems
- E.18Divide larger numbers by 2-digit numbers
- E.19Divide larger numbers by 2-digit numbers: word problems
- E.20Inequalities with division
- E.21Estimate quotients

## Mixed operations

- F.1Add, subtract, multiply, and divide
- F.2Addition, subtraction, multiplication, and division word problems
- F.3Estimate sums, differences, products, and quotients: word problems
- F.4Multi-step word problems
- F.5Word problems with extra or missing information
- F.6Solve word problems using guess-and-check
- F.7Choose numbers with a particular sum, difference, product, or quotient
- F.8Mentally add and subtract numbers ending in zeroes
- F.9Inequalities involving addition, subtraction, multiplication, and division

## Algebra

## Functions

## Coordinate graphs

## Data and graphs

## Logical reasoning

## Patterns and sequences

## Money

## Measurement

## Time

## Geometry

- P.1Identify planar and solid figures
- P.2Types of triangles
- P.3Open and closed shapes and qualities of polygons
- P.4Which 2-dimensional shape is being described?
- P.5Which 3-dimensional figure is being described?
- P.6Classify quadrilaterals
- P.7Number of sides in polygons
- P.8Count and compare sides, edges, faces, and vertices
- P.9Similar and congruent
- P.10Nets of 3-dimensional figures
- P.11Acute, right, obtuse, and straight angles
- P.12Angles of 90, 180, 270, and 360 degrees
- P.13Measure angles with a protractor
- P.14Estimate angle measurements
- P.15Adjacent angles
- P.16Parts of a circle
- P.17Perimeter
- P.18Area of squares and rectangles
- P.19Area of complex figures (with all right angles)
- P.20Area between two rectangles
- P.21Compare area and perimeter of two figures
- P.22Relationship between area and perimeter
- P.23Volume
- P.24Use area and perimeter to determine cost
- P.25Rotational symmetry
- P.26Lines of symmetry
- P.27Lines, line segments, and rays
- P.28Parallel, perpendicular, intersecting
- P.29Calculate radius, diameter and circumference

## Fractions and mixed numbers

- Q.1Equivalent fractions
- Q.2Fractions with denominators of 10, 100, and 1000
- Q.3Patterns of equivalent fractions
- Q.4Reduce fractions to lowest terms
- Q.5Fractions review
- Q.6Compare fractions
- Q.7Put fractions in order
- Q.8Fractions of a number
- Q.9Fractions of a number: word problems
- Q.10Mixed number review
- Q.11Convert between improper fractions and mixed numbers

## Add and subtract fractions

- R.1Add and subtract fractions with like denominators
- R.2Add and subtract fractions with like denominators: word problems
- R.3Add 3 or more fractions with like denominators
- R.4Add fractions with unlike denominators
- R.5Subtract fractions with unlike denominators
- R.6Add and subtract fractions with denominators of 10, 100, and 1000
- R.7Add and subtract fractions with unlike denominators: word problems
- R.8Add 3 or more fractions with unlike denominators
- R.9Add 3 or more fractions with like and unlike denominators: word problems
- R.10Find the missing numerator or denominator in addition and subtraction sentences
- R.11Add and subtract mixed numbers with like denominators
- R.12Add and subtract mixed numbers with unlike denominators
- R.13Add and subtract mixed numbers with like and unlike denominators: word problems
- R.14Inequalities with addition and subtraction of fractions
- R.15Recipes

## Multiply fractions

## Decimals

- T.1What decimal number is illustrated?
- T.2Understanding decimals expressed in words
- T.3Place values in decimal numbers
- T.4Equivalent decimals
- T.5Decimal number lines
- T.6Convert fractions and mixed numbers to decimals
- T.7Convert decimals to fractions and mixed numbers
- T.8Compare decimals and fractions
- T.9Round decimals
- T.10Compare decimal numbers
- T.11Put decimal numbers in order
- T.12Number sequences involving decimals
- T.13Solve decimal problems using diagrams

## Add and subtract decimals

- U.1Add decimal numbers
- U.2Subtract decimal numbers
- U.3Add and subtract decimals: word problems
- U.4Choose decimals with a particular sum or difference
- U.5Add 3 or more decimals
- U.6Add 3 or more decimals: word problems
- U.7Complete the addition or subtraction sentence
- U.8Inequalities with addition and subtraction
- U.9Estimate sums and differences of decimals