Addition

Here is a list of all of the skills that cover addition! 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!

Here is a list of all of the skills that cover addition! To start practising, just click on any link.

First-class skills

  1. B.1 Add with pictures - sums up to 10
  2. B.2 Addition sentences - sums up to 10
  3. B.3 Addition sentences using number lines - sums up to 10
  4. B.4 Adding zero
  5. C.1 Adding 1
  6. C.2 Adding 2
  7. C.3 Adding 3
  8. C.4 Adding 4
  9. C.5 Adding 5
  10. C.6 Adding 6
  11. C.7 Adding 7
  12. C.8 Adding 8
  13. C.9 Adding 9
  14. C.10 Adding 0
  15. D.1 Addition facts - sums up to 10
  16. D.2 Ways to make a number - addition sentences
  17. D.3 Make a number using addition - sums up to 10
  18. D.4 Complete the addition sentence - sums up to 10
  19. D.5 Addition word problems - sums up to 10
  20. D.6 Addition sentences for word problems - sums up to 10
  21. D.7 Addition facts - sums up to 18
  22. D.8 Addition sentences using number lines - sums up to 18
  23. D.9 Addition word problems - sums up to 18
  24. D.10 Addition sentences for word problems - sums up to 18
  25. D.11 Addition facts - sums up to 20
  26. D.12 Make a number using addition - sums up to 20
  27. D.13 Addition sentences for word problems - sums up to 20
  28. D.14 Related addition facts
  29. D.15 Addition sentences: true or false?
  30. D.16 Add a one-digit number to a two-digit number - without regrouping
  31. D.17 Add a one-digit number to a two-digit number - with regrouping
  32. D.18 Add two two-digit numbers - without regrouping
  33. D.19 Add two two-digit numbers - with regrouping
  34. D.20 Addition word problems - up to two digits
  35. E.1 Add doubles
  36. E.2 Add using doubles plus one
  37. E.3 Add using doubles minus one
  38. E.4 Add three numbers - use doubles
  39. E.5 Complete the addition sentence - make ten
  40. E.6 Add three numbers - make ten
  41. E.7 Add two multiples of ten
  42. E.8 Add a multiple of ten
  43. E.9 Add three numbers
  44. E.10 Add three numbers - word problems
  45. I.1 Relate addition and subtraction sentences
  46. W.1 Addition and subtraction - ways to make a number
  47. W.2 Which sign makes the number sentence true?
  48. W.3 Fact families
  49. W.4 Addition and subtraction facts - numbers up to 10
  50. W.5 Addition and subtraction facts - numbers up to 18
  51. W.6 Addition and subtraction word problems
  52. W.7 Ten more or less
  53. W.8 Add and subtract tens
  54. W.9 Addition and subtraction terms

Second-class skills

  1. E.1 Review - add one-digit numbers - sums to 10
  2. E.2 Review - ways to make a number - sums to 10
  3. E.3 Review - writing addition sentences - sums to 10
  4. E.4 Add doubles
  5. E.5 Add one-digit numbers
  6. E.6 Addition with pictures - sums to 20
  7. E.7 Write addition sentences to describe pictures - sums to 20
  8. E.8 Addition input/output tables - sums to 20
  9. E.9 Add zero
  10. E.10 Addition word problems - one digit
  11. E.11 Complete the addition sentence - one digit
  12. E.12 Write the addition sentence - one digit
  13. E.13 Balance addition equations - one digit
  14. E.14 Add three or more one-digit numbers
  15. E.15 Add three or more one-digit numbers - word problems
  16. E.16 Identify repeated addition in arrays: sums to 10
  17. E.17 Write addition sentences for arrays: sums to 10
  18. E.18 Identify repeated addition in arrays: sums to 25
  19. E.19 Write addition sentences for arrays: sums to 25
  20. G.1 Add multiples of 10
  21. G.2 Add a two-digit and a one-digit number - without regrouping
  22. G.3 Add a two-digit and a one-digit number - with regrouping
  23. G.4 Add two two-digit numbers - without regrouping
  24. G.5 Add two two-digit numbers - with regrouping
  25. G.6 Write addition sentences to describe pictures
  26. G.7 Addition input/output tables - up to two digits
  27. G.8 Ways to make a number using addition
  28. G.9 Addition word problems - up to two digits
  29. G.10 Complete the addition sentence - up to two digits
  30. G.11 Write the addition sentence - up to two digits
  31. G.12 Balance addition equations - up to two digits
  32. G.13 Add three or more numbers up to two digits each
  33. G.14 Add three or more numbers up to two digits - word problems
  34. I.1 Add multiples of 100
  35. I.2 Addition with three-digit numbers
  36. I.3 Addition input/output tables - up to three digits
  37. I.4 Addition word problems - up to three digits
  38. I.5 Complete the addition sentence - up to three digits
  39. I.6 Write the addition sentence - up to three digits
  40. I.7 Balance addition equations - up to three digits
  41. K.1 Related addition facts
  42. K.3 Fact families
  43. K.5 Solve inequalities using addition and subtraction shortcuts
  44. M.5 Estimate sums
  45. N.8 Add and subtract money - up to €1
  46. N.9 Add and subtract money - word problems - up to €1
  47. N.10 Add and subtract money - word problems - up to €5
  48. X.1 Add and subtract numbers up to 20
  49. X.2 Addition and subtraction - ways to make a number - up to 20
  50. X.3 Addition and subtraction word problems - up to 20
  51. X.4 Addition and subtraction - balance equations - up to 20
  52. X.5 Input/output tables - write the rule - up to 20
  53. X.6 Add and subtract numbers up to 100
  54. X.7 Addition and subtraction - ways to make a number - up to 100
  55. X.8 Addition and subtraction word problems - up to 100
  56. X.9 Addition and subtraction - balance equations - up to 100
  57. X.10 Input/output tables - write the rule - up to 100
  58. X.11 Which sign (+ or -) makes the number sentence true?
  59. X.12 Write addition and subtraction sentences
  60. X.13 Inequalities with addition and subtraction - up to 100

Fifth-class skills

  1. B.1 Add and subtract whole numbers up to millions
  2. B.2 Add and subtract whole numbers: word problems
  3. B.3 Complete addition and subtraction sentences
  4. B.4 Fill in the missing digits
  5. B.5 Choose numbers with a particular sum or difference
  6. B.6 Properties of addition
  7. B.7 Inequalities with addition and subtraction
  8. B.8 Estimate sums and differences of whole numbers
  9. B.9 Estimate sums and differences: word problems
  10. G.1 Add and subtract decimal numbers
  11. G.2 Add and subtract decimals: word problems
  12. G.3 Choose decimals with a particular sum or difference
  13. G.4 Complete the addition or subtraction sentence
  14. G.5 Inequalities with decimal addition and subtraction
  15. G.6 Estimate sums and differences of decimals
  16. K.2 Add and subtract fractions with like denominators using number lines
  17. K.3 Add and subtract fractions with like denominators
  18. K.4 Add and subtract fractions with like denominators: word problems
  19. K.5 Add and subtract mixed numbers with like denominators
  20. K.6 Add up to 4 fractions with denominators of 10 and 100
  21. K.7 Add fractions with unlike denominators
  22. K.9 Add and subtract fractions with unlike denominators: word problems
  23. K.10 Add three or more fractions with unlike denominators
  24. K.11 Add three or more fractions: word problems
  25. K.12 Complete addition and subtraction sentences with fractions
  26. K.13 Inequalities with addition and subtraction of fractions
  27. K.14 Estimate sums and differences of mixed numbers
  28. K.15 Add mixed numbers with unlike denominators
  29. K.17 Add and subtract mixed numbers: word problems
  30. K.18 Complete addition and subtraction sentences with mixed numbers
  31. K.19 Inequalities with addition and subtraction of mixed numbers
  32. P.1 Add and subtract money amounts
  33. P.2 Add and subtract money: word problems