# Mixed operations

Here is a list of all of the skills that cover mixed operations! These skills are organized by grade, 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!

## First-grade skills

- F.1Addition and subtraction - ways to make a number
- F.2Which sign makes the number sentence true?
- F.3Fact families
- F.4Addition and subtraction facts - numbers up to 10
- F.5Addition and subtraction facts - numbers up to 18
- F.6Addition and subtraction word problems
- F.7Addition and subtraction sentences: true or false?
- F.8Ten more or less
- F.9Add and subtract tens
- F.10Addition and subtraction terms

## Second-grade skills

- K.3Fact families
- K.4Addition, subtraction, multiplication, and division terms
- K.5Solve inequalities using addition and subtraction shortcuts
- L.1Add and subtract numbers up to 20
- L.2Addition and subtraction - ways to make a number - up to 20
- L.3Addition and subtraction word problems - up to 20
- L.4Addition and subtraction - balance equations - up to 20
- L.5Addition and subtraction equations up to 20: true or false?
- L.6Input/output tables - write the rule - up to 20
- L.7Add and subtract numbers up to 100
- L.8Addition and subtraction - ways to make a number - up to 100
- L.9Addition and subtraction word problems - up to 100
- L.10Addition and subtraction - balance equations - up to 100
- L.11Input/output tables - write the rule - up to 100
- L.12Which sign (+ or -) makes the number sentence true?
- L.13Write addition and subtraction sentences
- L.14Inequalities with addition and subtraction - up to 100
- P.9Add money - up to $1
- P.10Add money - up to $1: word problems
- P.11Subtract money - up to $1
- P.12Subtract money - up to $1: word problems
- P.13Add and subtract money - up to $1
- P.14Add and subtract money - up to $1: word problems

## Third-grade skills

- A.12Comparing - with addition and subtraction
- A.13Multi-step inequalities
- I.1Addition, subtraction, multiplication, and division facts
- I.2Complete the addition, subtraction, multiplication, or division sentence
- I.3Multiplication and division facts up to 5: true or false?
- I.4Multiplication and division facts up to 10: true or false?
- I.5Multiplication and division facts up to 12: true or false?
- I.6Multiplication and division sentences up to 12: true or false?
- I.7Add, subtract, multiply, and divide
- I.8Addition and subtraction word problems
- I.9Addition, subtraction, multiplication, and division word problems
- I.10Interpret data in tables
- I.11Multi-step word problems
- I.12Missing operators
- J.1Addition, subtraction, multiplication, and division terms
- J.2Understanding parentheses
- J.9Relate addition and multiplication
- J.10Relate multiplication and division
- N.7Add and subtract money amounts
- N.9Price lists
- W.7Add and subtract decimals
- W.8Add and subtract decimals - word problems

## Fourth-grade skills

- 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
- G.4Simplify expressions using order of operations and parentheses
- H.1Input/output tables with addition, subtraction, multiplication, and division
- M.4Add and subtract money amounts
- M.5Add, subtract, multiply, and divide money amounts
- M.7Price lists with addition and subtraction
- R.7Add and subtract fractions with like denominators
- R.9Add and subtract fractions with like denominators: word problems
- R.10Add and subtract fractions with like denominators in recipes
- R.12Add and subtract mixed numbers with like denominators
- S.7Add and subtract fractions with unlike denominators: word problems
- S.13Find the missing numerator or denominator in addition and subtraction sentences
- S.14Add and subtract mixed numbers with unlike denominators
- S.15Add and subtract mixed numbers with like and unlike denominators: word problems
- S.16Compare sums and differences of fractions
- S.17Add and subtract fractions with unlike denominators in recipes
- V.3Add and subtract decimals: word problems
- V.4Choose decimals with a particular sum or difference
- V.7Complete the addition or subtraction sentence
- V.8Inequalities with addition and subtraction
- V.9Estimate sums and differences of decimals

## Fifth-grade skills

- A.7Even and odd arithmetic patterns
- D.1Add and subtract whole numbers up to billions
- D.2Add and subtract whole numbers: word problems
- D.3Add and subtract money amounts
- D.4Add and subtract money: word problems
- D.5Complete addition and subtraction sentences
- D.6Fill in the missing digits
- D.7Choose numbers with a particular sum or difference
- D.9Inequalities with addition and subtraction
- D.10Estimate sums and differences of whole numbers
- D.11Estimate sums and differences: word problems
- E.3Add and subtract decimal numbers
- E.4Add and subtract decimals: word problems
- E.5Choose decimals with a particular sum or difference
- E.6Complete the addition or subtraction sentence
- E.7Inequalities with decimal addition and subtraction
- E.8Estimate sums and differences of decimals
- J.1Multi-step word problems
- M.3Add and subtract fractions with like denominators
- M.4Add and subtract fractions with like denominators: word problems
- M.5Add and subtract mixed numbers with like denominators
- M.11Add and subtract fractions with unlike denominators: word problems
- M.15Complete addition and subtraction sentences with fractions
- M.16Inequalities with addition and subtraction of fractions
- M.17Estimate sums and differences of mixed numbers
- M.20Add and subtract mixed numbers: word problems
- M.21Add and subtract fractions in recipes
- M.22Complete addition and subtraction sentences with mixed numbers
- M.23Inequalities with addition and subtraction of mixed numbers
- P.1Add, subtract, multiply, and divide whole numbers
- P.2Add, subtract, multiply, and divide whole numbers: word problems
- P.3Add, subtract, multiply, and divide decimals
- P.4Add, subtract, multiply, and divide decimals: word problems
- P.5Add, subtract, multiply, and divide fractions and mixed numbers
- P.6Add, subtract, multiply, and divide fractions and mixed numbers: word problems
- Q.1Simplify expressions using order of operations and parentheses
- U.1Price lists

## Sixth-grade skills

- D.4Add and subtract rational numbers
- D.5Multiply and divide rational numbers
- F.2Add and subtract money amounts
- F.3Add and subtract money amounts: word problems
- I.1Review - add and subtract whole numbers
- I.2Review - add and subtract whole numbers: word problems
- I.4Integer addition and subtraction rules
- I.9Add and subtract integers - input/output tables
- J.1Add and subtract decimal numbers
- J.2Add and subtract decimals: word problems
- J.3Estimate sums and differences of decimals
- J.4Maps with decimal distances
- O.6Multiply and divide decimals by powers of ten
- O.9Evaluate expressions involving decimals
- P.13Evaluate expressions involving integers
- U.1Add and subtract fractions with like denominators
- U.2Add and subtract fractions with like denominators: word problems
- U.3Add and subtract fractions with unlike denominators
- U.4Add and subtract fractions with unlike denominators: word problems
- U.5Inequalities with addition and subtraction of like and unlike fractions
- U.6Add and subtract mixed numbers
- U.7Add and subtract mixed numbers: word problems
- U.8Estimate sums and differences of mixed numbers
- U.9Maps with fractional distances
- X.1Add, subtract, multiply, and divide whole numbers
- X.2Add, subtract, multiply, and divide whole numbers: word problems
- X.3Add, subtract, multiply, and divide integers
- X.4Add, subtract, multiply, and divide decimals
- X.5Add, subtract, multiply, and divide decimals: word problems
- X.6Add, subtract, multiply, and divide fractions and mixed numbers
- X.7Add, subtract, multiply, and divide fractions and mixed numbers: word problems

## Seventh-grade skills

- C.1Add and subtract decimals
- C.2Add and subtract decimals: word problems
- C.7Estimate sums, differences, and products of decimals
- C.8Add, subtract, multiply, and divide decimals: word problems
- C.9Multi-step inequalities with decimals
- C.10Maps with decimal distances
- C.11Simplify expressions involving decimals
- E.1Integer addition and subtraction rules
- E.2Add and subtract integers using counters
- E.3Add and subtract integers
- E.4Complete addition and subtraction sentences with integers
- E.5Add and subtract integers: word problems
- E.6Integer multiplication and division rules
- E.7Multiply and divide integers
- E.8Complete multiplication and division sentences with integers
- E.9Simplify expressions involving integers
- G.1Add and subtract fractions
- G.2Add and subtract fractions: word problems
- G.3Add and subtract mixed numbers
- G.4Add and subtract mixed numbers: word problems
- G.5Inequalities with addition and subtraction of fractions and mixed numbers
- G.6Estimate sums and differences of mixed numbers
- G.15Estimate products and quotients of fractions and mixed numbers
- G.16Add, subtract, multiply, and divide fractions and mixed numbers: word problems
- G.17Maps with fractional distances
- H.6Add and subtract rational numbers
- H.7Multiply and divide rational numbers
- I.8Simplify expressions involving exponents
- L.1Add, subtract, multiply, and divide money amounts: word problems
- L.2Price lists
- L.5Unit prices: find the total price
- M.1Estimate to solve word problems

## Eighth-grade skills

- C.1Integer addition and subtraction rules
- C.2Add and subtract integers using counters
- C.3Add and subtract integers
- C.4Add and subtract three or more integers
- C.5Add and subtract integers: word problems
- C.6Integer multiplication and division rules
- C.7Multiply and divide integers
- C.8Simplify expressions involving integers and absolute values
- E.2Add and subtract rational numbers
- E.3Add and subtract rational numbers: word problems
- E.4Multiply and divide rational numbers
- E.5Multiply and divide rational numbers: word problems
- E.6Simplify expressions involving rational numbers
- F.12Simplify expressions involving exponents
- K.1Price lists
- K.4Unit prices: find the total price

## Algebra 1 skills

- B.1Add, subtract, multiply, and divide integers
- B.2Order of operations with integers
- B.4Add and subtract rational numbers
- B.5Multiply and divide rational numbers
- B.6Order of operations with rational numbers
- M.3Add and subtract matrices
- O.1Word problems: mixed review
- O.2Word problems with money
- V.8Simplify expressions involving exponents
- EE.4Add and subtract radical expressions
- GG.4Multiply and divide rational expressions
- GG.6Add and subtract rational expressions