# Mixed operations

Here is a list of all of the skills that cover mixed operations! These skills are organised by year, and you can move your mouse over any skill name to preview the skill. To start practising, just click on any link. IXL will track your score, and the questions will automatically increase in difficulty as you improve!

## First-class skills

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

## Second-class skills

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

## Third-class skills

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

## Fourth-class skills

- 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 Multi-step word problems
- F.5 Word problems with extra or missing information
- F.6 Solve word problems using guess-and-check
- F.7 Choose numbers with a particular sum, difference, product or quotient
- F.8 Mentally add and subtract numbers ending in zeroes
- F.9 Inequalities involving addition, subtraction, multiplication and division
- H.1 Input/output tables with addition, subtraction, multiplication and division
- L.3 Add and subtract money amounts
- L.4 Add, subtract, multiply and divide money amounts
- L.6 Price lists
- R.3 Add and subtract fractions with like denominators
- R.4 Add and subtract fractions with like denominators: word problems
- R.5 Add and subtract mixed numbers with like denominators
- R.6 Add and subtract mixed numbers with like denominators: word problems
- R.10 Complete addition and subtraction sentences with fractions
- U.3 Add and subtract decimals: word problems
- U.4 Choose decimals with a particular sum or difference
- U.7 Complete the addition or subtraction sentence
- U.8 Inequalities with addition and subtraction
- U.9 Estimate sums and differences of decimals

## Fifth-class skills

- A.7 Even or odd: arithmetic rules
- B.1 Add and subtract whole numbers up to millions
- B.2 Add and subtract whole numbers: word problems
- B.3 Complete addition and subtraction sentences
- B.4 Fill in the missing digits
- B.5 Choose numbers with a particular sum or difference
- B.7 Inequalities with addition and subtraction
- B.8 Estimate sums and differences of whole numbers
- B.9 Estimate sums and differences: word problems
- G.1 Add and subtract decimal numbers
- G.2 Add and subtract decimals: word problems
- G.3 Choose decimals with a particular sum or difference
- G.4 Complete the addition or subtraction sentence
- G.5 Inequalities with decimal addition and subtraction
- G.6 Estimate sums and differences of decimals
- K.3 Add and subtract fractions with like denominators
- K.4 Add and subtract fractions with like denominators: word problems
- K.5 Add and subtract mixed numbers with like denominators
- K.9 Add and subtract fractions with unlike denominators: word problems
- K.12 Complete addition and subtraction sentences with fractions
- K.13 Inequalities with addition and subtraction of fractions
- K.14 Estimate sums and differences of mixed numbers
- K.17 Add and subtract mixed numbers: word problems
- K.18 Complete addition and subtraction sentences with mixed numbers
- K.19 Inequalities with addition and subtraction of mixed numbers
- L.1 Add, subtract, multiply and divide whole numbers
- L.2 Add, subtract, multiply and divide whole numbers: word problems
- L.3 Write numerical expressions
- L.4 Evaluate numerical expressions
- L.5 Add, subtract, multiply and divide decimals
- L.6 Add, subtract, multiply and divide decimals: word problems
- M.1 Multi-step word problems
- P.1 Add and subtract money amounts
- P.2 Add and subtract money: word problems
- P.6 Price lists

## Sixth-class skills

- A.4 Add and subtract whole numbers
- A.5 Add and subtract whole numbers: word problems
- G.1 Add and subtract decimal numbers
- G.2 Add and subtract decimals: word problems
- G.3 Estimate sums and differences of decimals
- G.4 Maps with decimal distances
- H.10 Multiply and divide decimals by powers of ten
- J.1 Add and subtract fractions with like denominators
- J.2 Add and subtract fractions with like denominators: word problems
- J.3 Add and subtract fractions with unlike denominators
- J.4 Add and subtract fractions with unlike denominators: word problems
- J.5 Inequalities with addition and subtraction of like and unlike fractions
- J.6 Add and subtract mixed numbers
- J.7 Add and subtract mixed numbers: word problems
- J.8 Estimate sums and differences of mixed numbers
- N.5 Add and subtract integers: find the sign
- N.6 Add and subtract integers: input/output tables
- O.1 Add, subtract, multiply or divide two whole numbers
- O.2 Add, subtract, multiply or divide two whole numbers: word problems
- O.3 Evaluate numerical expressions involving whole numbers
- O.4 Add, subtract, multiply or divide two decimals
- O.5 Add, subtract, multiply or divide two decimals: word problems
- O.6 Evaluate numerical expressions involving decimals
- O.7 Add, subtract or multiply two fractions
- O.8 Add, subtract or multiply two fractions: word problems
- O.9 Add, subtract, multiply or divide two integers
- U.2 Add and subtract money amounts
- U.3 Add and subtract money amounts: word problems

## First-year skills

- C.1 Integer addition and subtraction rules
- C.2 Add and subtract integers using counters
- C.3 Add and subtract integers
- C.4 Complete addition and subtraction sentences with integers
- C.5 Add and subtract integers: word problems
- C.6 Integer multiplication and division rules
- C.7 Multiply and divide integers
- C.8 Complete multiplication and division sentences with integers
- C.9 Evaluate numerical expressions involving integers
- E.1 Add and subtract decimals
- E.2 Add and subtract decimals: word problems
- E.7 Estimate sums, differences and products of decimals
- E.8 Add, subtract, multiply and divide decimals: word problems
- E.9 Multi-step inequalities with decimals
- E.10 Maps with decimal distances
- E.11 Evaluate numerical expressions involving decimals
- G.1 Add and subtract fractions
- G.2 Add and subtract fractions: word problems
- G.3 Add and subtract mixed numbers
- G.4 Add and subtract mixed numbers: word problems
- G.5 Inequalities with addition and subtraction of fractions and mixed numbers
- G.6 Estimate sums and differences of mixed numbers
- G.16 Estimate products and quotients of fractions and mixed numbers
- G.17 Add, subtract, multiply and divide fractions and mixed numbers: word problems
- G.18 Evaluate numerical expressions involving fractions
- H.6 Add and subtract rational numbers
- H.7 Apply addition and subtraction rules
- H.8 Multiply and divide rational numbers
- H.9 Apply multiplication and division rules
- I.6 Evaluate numerical expressions involving exponents
- M.1 Add, subtract, multiply and divide money amounts: word problems
- M.2 Price lists
- M.4 Unit prices: find the total price
- N.1 Estimate to solve word problems

## Second-year skills

- C.1 Integer addition and subtraction rules
- C.2 Add and subtract integers using counters
- C.3 Add and subtract integers
- C.4 Add and subtract three or more integers
- C.5 Add and subtract integers: word problems
- C.6 Integer multiplication and division rules
- C.7 Multiply and divide integers
- C.8 Evaluate numerical expressions involving integers
- E.2 Add and subtract rational numbers
- E.3 Add and subtract rational numbers: word problems
- E.4 Apply addition and subtraction rules
- E.5 Multiply and divide rational numbers
- E.6 Multiply and divide rational numbers: word problems
- E.7 Apply multiplication and division rules
- E.8 Apply addition, subtraction, multiplication and division rules
- E.9 Evaluate numerical expressions involving rational numbers
- F.12 Evaluate expressions using properties of exponents
- K.1 Price lists
- K.3 Unit prices: find the total price

## Third-year skills

- B.1 Add, subtract, multiply and divide integers
- B.2 Evaluate numerical expressions involving integers
- B.4 Add and subtract rational numbers
- B.5 Multiply and divide rational numbers
- B.6 Evaluate numerical expressions involving rational numbers
- O.1 Word problems: mixed review
- O.2 Word problems with money
- V.8 Evaluate expressions using properties of exponents
- EE.4 Multiply and divide rational expressions
- EE.6 Add and subtract rational expressions

## Transition year skills

- B.1 Add, subtract, multiply and divide integers
- B.2 Evaluate numerical expressions involving integers
- B.4 Add and subtract rational numbers
- B.5 Multiply and divide rational numbers
- B.6 Evaluate numerical expressions involving rational numbers
- H.8 Evaluate expressions using properties of exponents
- P.4 Add and subtract radical expressions
- Q.4 Multiply and divide rational expressions
- Q.6 Add and subtract rational expressions