# 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.10Box multiplication
- D.11Lattice multiplication
- D.12Multiply a 2-digit number by a 2-digit number: complete the missing steps
- D.13Multiply a 2-digit number by a 2-digit number
- D.14Multiply a 2-digit number by a 2-digit number: word problems
- D.15Choose numbers with a particular product
- D.16Multiply a 2-digit number by a larger number: complete the missing steps
- D.17Multiply a 2-digit number by a larger number
- D.18Multiply a 2-digit number by a larger number: word problems
- D.19Multiply numbers ending in zeroes
- D.20Multiply numbers ending in zeroes: word problems
- D.21Multiply 3 numbers up to 2 digits each
- D.22Inequalities 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

## Fraction equivalence and ordering

- Q.1Fractions review
- Q.2Mixed number review
- Q.3Find equivalent fractions using area models
- Q.4Equivalent fractions
- Q.5Fractions with denominators of 10, 100, and 1000
- Q.6Patterns of equivalent fractions
- Q.7Reduce fractions to lowest terms
- Q.8Benchmark fractions
- Q.9Compare fractions using benchmarks
- Q.10Graph and compare fractions on number lines
- Q.11Compare fractions
- Q.12Compare fractions in recipes
- Q.13Graph and order fractions on number lines
- Q.14Put fractions in order
- Q.15Convert between improper fractions and mixed numbers
- Q.16Graph equivalent fractions on number lines

## Add and subtract fractions with like denominators

- R.1Decompose fractions into unit fractions
- R.2Decompose fractions
- R.3Decompose fractions multiple ways
- R.4Add fractions with like denominators using number lines
- R.5Subtract fractions with like denominators using number lines
- R.6Add and subtract fractions with like denominators using number lines
- R.7Add and subtract fractions with like denominators
- R.8Add and subtract fractions with like denominators: word problems
- R.9Add and subtract fractions with like denominators in recipes
- R.10Add 3 or more fractions with like denominators
- R.11Add and subtract mixed numbers with like denominators

## Add and subtract fractions with unlike denominators

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

## Multiply fractions

- T.1Multiply unit fractions by whole numbers using number lines
- T.2Multiply unit fractions and whole numbers: sorting
- T.3Multiply fractions by whole numbers I
- T.4Multiply fractions by whole numbers using number lines
- T.5Multiply fractions and whole numbers: sorting
- T.6Multiply fractions by whole numbers II
- T.7Multiply fractions by whole numbers: word problems
- T.8Multiply fractions and mixed numbers by whole numbers in recipes
- T.9Fractions of a number
- T.10Fractions of a number: word problems

## Decimals

- U.1What decimal number is illustrated?
- U.2Understanding decimals expressed in words
- U.3Place values in decimal numbers
- U.4Equivalent decimals
- U.5Decimal number lines
- U.6Graph decimals on number lines
- U.7Graph fractions as decimals on number lines
- U.8Convert decimals between standard and expanded form using fractions
- U.9Convert fractions and mixed numbers to decimals
- U.10Convert decimals to fractions and mixed numbers
- U.11Compare decimals and fractions
- U.12Round decimals
- U.13Compare decimals on number lines
- U.14Compare decimal numbers
- U.15Put decimal numbers in order
- U.16Put tricky decimals in order
- U.17Compare fractions and decimals on number lines
- U.18Number sequences involving decimals
- U.19Solve decimal problems using diagrams

## Add and subtract decimals

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