# Fourth grade math

Here is a list of all of the math skills students learn in fourth grade! These skills are organized into categories, and you can move your mouse over any skill name to preview the skill. 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

- A.1 Value of a digit
- A.2 Convert between standard and expanded form
- A.3 Place value names
- A.4 Convert between place values
- A.5 Choose word names for numbers up to one thousand
- A.6 Write word names for numbers up to one thousand
- A.7 Choose word names for numbers up to one hundred million
- A.8 Write word names for numbers up to one hundred million
- A.9 Roman numerals
- A.10 Prime and composite - up to 20
- A.11 Prime and composite - up to 100
- A.12 Rounding
- A.13 Even or odd: arithmetic rules
- A.14 Inequalities with number lines
- A.15 Compare numbers up to one billion

## Addition

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

## Subtraction

## Multiplication

- D.1 Multiplication facts to 12
- D.2 Multiplication facts up to 12: find the missing factor
- D.3 Choose the multiples of a given number up to 12
- D.4 Identify factors
- D.5 Multiply 1-digit numbers by 2-digit numbers
- D.6 Multiply 1-digit numbers by 3-digit or 4-digit numbers
- D.7 Multiply 1-digit numbers by larger numbers
- D.8 Multiplication patterns over increasing place values
- D.9 Properties of multiplication
- D.10 Distributive property: find the missing factor
- D.11 Multiply using the distributive property
- D.12 Estimate products - multiply by 1-digit numbers
- D.13 Estimate products - multiply by larger numbers
- D.14 Estimate products: word problems
- D.15 Box multiplication
- D.16 Lattice multiplication
- D.17 Multiply a 2-digit number by a 2-digit number: complete the missing steps
- D.18 Multiply a 2-digit number by a 2-digit number
- D.19 Multiply a 2-digit number by a 2-digit number: word problems
- D.20 Choose numbers with a particular product
- D.21 Multiply a 2-digit number by a larger number: complete the missing steps
- D.22 Multiply a 2-digit number by a larger number
- D.23 Multiply a 2-digit number by a larger number: word problems
- D.24 Multiply numbers ending in zeroes
- D.25 Multiply numbers ending in zeroes: word problems
- D.26 Multiply three numbers up to two digits each
- D.27 Multiply three or more numbers: word problems
- D.28 Inequalities with multiplication
- D.29 Multiplication input/output tables
- D.30 Multiplication input/output tables: find the rule

## Division

- E.1 Division facts to 12
- E.2 Division facts to 12: word problems
- E.3 Properties of division
- E.4 Divide 2-digit numbers by 1-digit numbers
- E.5 Divide 2-digit numbers by 1-digit numbers: word problems
- E.6 Divide 2-digit numbers by 1-digit numbers: complete the table
- E.7 Divide 2-digit numbers by 1-digit numbers: interpret remainders
- E.8 Divide larger numbers by 1-digit numbers
- E.9 Divide larger numbers by 1-digit numbers: word problems
- E.10 Divide larger numbers by 1-digit numbers: complete the table
- E.11 Divide larger numbers by 1-digit numbers: interpret remainders
- E.12 Choose numbers with a particular quotient
- E.13 Division patterns over increasing place values
- E.14 Divide numbers ending in zeroes by 1-digit numbers
- E.15 Divide by 1-digit numbers: estimate quotients
- E.16 Divisibility rules
- E.17 Divisibility rules: word problems
- E.18 Divide numbers ending in zeroes by multi-digit numbers
- E.19 Divide numbers ending in zeroes by multi-digit numbers: word problems
- E.20 Divide 2-digit numbers by multiples of 10
- E.21 Divide by 2-digit numbers
- E.22 Divide by 2-digit numbers: word problems
- E.23 Divide larger numbers by 2-digit numbers
- E.24 Divide larger numbers by 2-digit numbers: word problems
- E.25 Inequalities with division
- E.26 Estimate quotients

## Mixed operations

- F.1 Add, subtract, multiply, and divide
- F.2 Addition, subtraction, multiplication, and division word problems
- F.3 Estimate sums, differences, products, and quotients: word problems
- F.4 Word problems with extra or missing information
- F.5 Solve word problems using guess-and-check
- F.6 Multi-step word problems
- F.7 Choose numbers with a particular sum, difference, product, or quotient
- F.8 Mentally add and subtract numbers ending in zeroes
- F.9 Write numerical expressions
- F.10 Perform multiple operations with whole numbers
- F.11 Inequalities involving addition, subtraction, multiplication, and division

## Functions

## Coordinate plane

## Data and graphs

- J.1 Read a table
- J.2 Interpret line graphs
- J.3 Create line graphs
- J.4 Interpret bar graphs
- J.5 Create bar graphs
- J.6 Interpret line plots
- J.7 Create line plots
- J.8 Create and interpret line plots with fractions
- J.9 Frequency charts
- J.10 Stem-and-leaf plots
- J.11 Circle graphs
- J.12 Choose the best type of graph

## Logical reasoning

## Patterns and sequences

- L.1 Find the next shape in a repeating pattern
- L.2 Complete a repeating pattern
- L.3 Make a repeating pattern
- L.4 Find the next row in a growing pattern of shapes
- L.5 Complete an increasing number pattern
- L.6 Complete a geometric number pattern
- L.7 Use a rule to complete a number pattern
- L.8 Number patterns: word problems
- L.9 Number patterns: mixed review

## Money

## Units of measurement

- N.1 Measure using an inch ruler
- N.2 Which customary unit is appropriate?
- N.3 Compare and convert customary units of length
- N.4 Compare and convert customary units of weight
- N.5 Compare and convert customary units of volume
- N.6 Compare and convert customary units
- N.7 Conversion tables - customary units
- N.8 Compare customary units by multiplying
- N.9 Convert mixed customary units
- N.10 Add and subtract mixed customary units
- N.11 Which metric unit is appropriate?
- N.12 Compare and convert metric units of length
- N.13 Compare and convert metric units of weight
- N.14 Compare and convert metric units of volume
- N.15 Compare and convert metric units
- N.16 Conversion tables - metric units
- N.17 Convert metric mixed units
- N.18 Add and subtract metric mixed units
- N.19 Convert between metric and customary units

## Time

## Fraction equivalence and ordering

- P.1 Fractions review
- P.2 Fractions of a whole: word problems
- P.3 Fractions of a group: word problems
- P.4 Mixed number review
- P.5 Find equivalent fractions using area models
- P.6 Graph equivalent fractions on number lines
- P.7 Equivalent fractions
- P.8 Fractions with denominators of 10, 100, and 1000
- P.9 Patterns of equivalent fractions
- P.10 Write fractions in lowest terms
- P.11 Compare fractions with like numerators or denominators using models
- P.12 Graph and compare fractions with like numerators or denominators on number lines
- P.13 Compare fractions with like numerators or denominators
- P.14 Compare fractions using models
- P.15 Benchmark fractions
- P.16 Compare fractions using benchmarks
- P.17 Compare fractions
- P.18 Compare fractions in recipes
- P.19 Graph and order fractions on number lines
- P.20 Order fractions with like numerators or denominators
- P.21 Order fractions
- P.22 Find smaller or larger fractions
- P.23 Convert between improper fractions and mixed numbers

## Add and subtract fractions with like denominators

- Q.1 Decompose fractions into unit fractions
- Q.2 Decompose fractions
- Q.3 Decompose fractions multiple ways
- Q.4 Add fractions with like denominators using number lines
- Q.5 Add fractions with like denominators
- Q.6 Subtract fractions with like denominators using number lines
- Q.7 Subtract fractions with like denominators
- Q.8 Add and subtract fractions with like denominators using number lines
- Q.9 Add and subtract fractions with like denominators
- Q.10 Compare sums and differences of fractions with like denominators
- Q.11 Add and subtract fractions with like denominators: word problems
- Q.12 Add and subtract fractions with like denominators in recipes
- Q.13 Add 3 or more fractions with like denominators
- Q.14 Add and subtract mixed numbers with like denominators

## Add and subtract fractions with unlike denominators

- R.1 Add fractions with unlike denominators using models
- R.2 Add fractions with unlike denominators
- R.3 Subtract fractions with unlike denominators using models
- R.4 Subtract fractions with unlike denominators
- R.5 Add fractions with denominators of 10 and 100
- R.6 Add and subtract fractions with denominators of 10, 100, and 1000
- R.7 Add and subtract fractions with unlike denominators: word problems
- R.8 Compare sums of unit fractions
- R.9 Compare differences of unit fractions
- R.10 Compare sums and differences of unit fractions
- R.11 Add 3 or more fractions with unlike denominators
- R.12 Add 3 or more fractions with like and unlike denominators: word problems
- R.13 Find the missing numerator or denominator in addition and subtraction sentences
- R.14 Add and subtract mixed numbers with unlike denominators
- R.15 Add and subtract mixed numbers with like and unlike denominators: word problems
- R.16 Compare sums and differences of fractions
- R.17 Add and subtract fractions with unlike denominators in recipes

## Multiply fractions

- S.1 Multiply unit fractions by whole numbers using number lines
- S.2 Multiply unit fractions by whole numbers using models
- S.3 Multiples of fractions
- S.4 Multiply unit fractions and whole numbers: sorting
- S.5 Multiply unit fractions by whole numbers
- S.6 Multiply unit fractions by whole numbers: word problems
- S.7 Multiply fractions by whole numbers using number lines
- S.8 Multiply fractions by whole numbers using models
- S.9 Multiply fractions and whole numbers: sorting
- S.10 Multiply fractions by whole numbers
- S.11 Scaling whole numbers by fractions
- S.12 Multiply fractions by whole numbers: word problems
- S.13 Multiply fractions and mixed numbers by whole numbers in recipes
- S.14 Fractions of a number
- S.15 Fractions of a number: word problems

## Decimals

- T.1 What decimal number is illustrated?
- T.2 Model decimals and fractions
- T.3 Understanding decimals expressed in words
- T.4 Place values in decimal numbers
- T.5 Equivalent decimals
- T.6 Graph decimals on number lines
- T.7 Decimal number lines
- T.8 Graph fractions as decimals on number lines
- T.9 Convert fractions and mixed numbers to decimals - denominators of 10 and 100
- T.10 Convert fractions and mixed numbers to decimals
- T.11 Convert decimals to fractions and mixed numbers
- T.12 Convert decimals between standard and expanded form using fractions
- T.13 Round decimals
- T.14 Compare decimals on number lines
- T.15 Compare decimal numbers
- T.16 Put decimal numbers in order I
- T.17 Put decimal numbers in order II
- T.18 Compare decimals and fractions on number lines
- T.19 Compare decimals and fractions
- T.20 Number sequences involving decimals

## Add and subtract decimals

- U.1 Add decimal numbers
- U.2 Subtract decimal numbers
- U.3 Add and subtract decimals: word problems
- U.4 Choose decimals with a particular sum or difference
- U.5 Add 3 or more decimals
- U.6 Add 3 or more decimals: word problems
- U.7 Complete the addition or subtraction sentence
- U.8 Inequalities with addition and subtraction
- U.9 Estimate sums and differences of decimals
- U.10 Solve decimal problems using diagrams

## Probability and statistics

## Two-dimensional figures

## Triangles and quadrilaterals

## Symmetry

## Angles

## Three-dimensional figures

## Geometric measurement

- BB.1 Perimeter
- BB.2 Perimeter: find the missing side lengths
- BB.3 Select figures with a given area
- BB.4 Select two figures with the same area
- BB.5 Create figures with a given area
- BB.6 Find the area or missing side length of a rectangle
- BB.7 Area of complex figures (with all right angles)
- BB.8 Area between two rectangles
- BB.9 Compare area and perimeter of two figures
- BB.10 Relationship between area and perimeter
- BB.11 Area and perimeter: word problems
- BB.12 Volume
- BB.13 Use area and perimeter to determine cost
- BB.14 Calculate radius, diameter, and circumference