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Addition•Grade 3•Timed Drill

Grade 3 Addition Timed Drill

Grade 3 addition timed drill sheet: 72 problems on addition facts within 20, adding two-digit numbers mentally.

CCSSAligned to Common Core 2.OA.2: Fluently add and subtract within 20 using mental strategies; know from memory all sums of two one-digit numbers.

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Three different problem sets — same skill, same layout, fresh numbers.

Preview — Set A

Start the timer, then solve as many problems as you can. Write your time in the box when you finish.

TIMED DRILLTime: ______ min ______ secScore: ______ / 72
  1. 1.
    11 + 9 =
  2. 2.
    58 + 32 =
  3. 3.
    8 + 11 =
  4. 4.
    16 + 51 =
  5. 5.
    13 + 7 =
  6. 6.
    37 + 47 =
  7. 7.
    10 + 7 =
  8. 8.
    67 + 29 =
  9. 9.
    5 + 6 =
  10. 10.
    36 + 12 =
  11. 11.
    4 + 15 =
  12. 12.
    19 + 49 =
  13. 13.
    8 + 10 =
  14. 14.
    26 + 64 =
  15. 15.
    16 + 4 =
  16. 16.
    14 + 71 =
  17. 17.
    6 + 8 =
  18. 18.
    58 + 17 =
  19. 19.
    9 + 3 =
  20. 20.
    41 + 52 =
  21. 21.
    9 + 10 =
  22. 22.
    11 + 21 =
  23. 23.
    11 + 5 =
  24. 24.
    79 + 18 =
  25. 25.
    14 + 5 =
  26. 26.
    31 + 67 =
  27. 27.
    7 + 5 =
  28. 28.
    54 + 34 =
  29. 29.
    13 + 6 =
  30. 30.
    12 + 37 =
  31. 31.
    10 + 3 =
  32. 32.
    21 + 44 =
  33. 33.
    12 + 7 =
  34. 34.
    37 + 15 =
  35. 35.
    15 + 5 =
  36. 36.
    10 + 45 =
  37. 37.
    4 + 6 =
  38. 38.
    11 + 88 =
  39. 39.
    6 + 12 =
  40. 40.
    12 + 67 =
  41. 41.
    8 + 8 =
  42. 42.
    20 + 29 =
  43. 43.
    11 + 3 =
  44. 44.
    34 + 64 =
  45. 45.
    9 + 5 =
  46. 46.
    50 + 31 =
  47. 47.
    5 + 8 =
  48. 48.
    43 + 28 =
  49. 49.
    4 + 16 =
  50. 50.
    53 + 39 =
  51. 51.
    7 + 4 =
  52. 52.
    25 + 22 =
  53. 53.
    4 + 4 =
  54. 54.
    56 + 30 =
  55. 55.
    15 + 3 =
  56. 56.
    18 + 37 =
  57. 57.
    17 + 3 =
  58. 58.
    51 + 24 =
  59. 59.
    9 + 7 =
  60. 60.
    23 + 53 =
  61. 61.
    6 + 14 =
  62. 62.
    38 + 18 =
  63. 63.
    3 + 9 =
  64. 64.
    10 + 70 =
  65. 65.
    7 + 7 =
  66. 66.
    53 + 19 =
  67. 67.
    9 + 9 =
  68. 68.
    19 + 24 =
  69. 69.
    7 + 6 =
  70. 70.
    69 + 14 =
  71. 71.
    3 + 16 =
  72. 72.
    21 + 43 =

What this worksheet covers

There are 72 addition problems here — one page to work, one page of answers to check against — and Sets B and C repeat the layout with different numbers. What makes this set particular: 36 of the 72 column problems need regrouping and the rest do not, so the two cases are mixed rather than blocked and the numbers run as high as 88. Problems 25 and 49, for instance, are "14 + 5" and "4 + 16". Common Core 2.OA.2 is the slot this page fills.

Skills practised

At grade 3, addition is about three-digit column addition with regrouping in more than one place, and this sheet takes one slice of that. Specifically, the problems practise addition facts within 20 and adding two-digit numbers mentally. To finish it, a student has to carry or borrow across place-value columns without losing a digit. 42 different answers appear across the 72 problems, so a student cannot copy one result down the page.

About the timed drill format

The timer box at the top has room for minutes, seconds and a score out of 72; a realistic target for a page like this, where problem 25, "14 + 5" is a typical item, is four to five minutes. Fact recall has to be automatic before column addition can be, and a timed page is the only honest test of automatic.

Set A, Set B and Set C

All three sets are produced by the site's deterministic generator from a fixed seed, so they are the same every time the site is built and the answer keys are exact. Where Set A's problem 37 is "4 + 6", Set B's is "15 + 3".

How to use this worksheet

Give this timed drill uninterrupted. At grade 3, addition is where procedure and recall have to run at the same time, and 72 problems done in fragments hide which of the two is the problem. Mark the 72 problems the same day using the key — an error caught immediately is a correction, and one caught next week is a habit.

The full guide to teaching additionHow to teach addition from counting on to signed rational numbers: the grade 1–8 progression, six teaching strategies, and the errors that stall students.

Other grade 3 addition formats

The same skill in the other formats available at this grade.

  • Drill — Grade 3 Addition Drill, 30 problems
  • Missing Number — Grade 3 Addition Missing Number, 24 problems
  • Mixed Review — Grade 3 Addition Mixed Review, 30 problems
  • Word Problems — Grade 3 Addition Word Problems, 10 problems
  • Vertical Format — Grade 3 Three-Digit Addition with Regrouping, 20 problems

A step either side

The same format one grade down and one grade up — the easier sheet is often the faster fix when this one is not landing.

Timed Drill sheets in other grade 3 topics

No paywall and no account — download any set of this grade 3 addition timed drill, and the answers for all 72 problems are in the matching key.

← All grade 3 addition worksheetsAddition, every gradeGrade 3 mathBuild your own in the generatorCommon Core 2.OA.2

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