Mixed OperationsGrade 2Timed Drill

Grade 2 Mixed Operations Timed Drill

Grade 2 mixed operations timed drill sheet: 60 problems on mixed facts within 20.

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: ______ / 60
  1. 1.
    18 - 4 =
  2. 2.
    3 - 1 =
  3. 3.
    6 - 2 =
  4. 4.
    7 + 10 =
  5. 5.
    13 - 12 =
  6. 6.
    6 - 4 =
  7. 7.
    10 + 3 =
  8. 8.
    15 + 1 =
  9. 9.
    6 - 5 =
  10. 10.
    9 - 2 =
  11. 11.
    16 - 3 =
  12. 12.
    15 - 2 =
  13. 13.
    19 + 1 =
  14. 14.
    19 - 5 =
  15. 15.
    12 + 8 =
  16. 16.
    6 + 1 =
  17. 17.
    20 - 18 =
  18. 18.
    14 + 6 =
  19. 19.
    14 + 3 =
  20. 20.
    11 - 5 =
  21. 21.
    11 - 6 =
  22. 22.
    18 - 5 =
  23. 23.
    18 + 1 =
  24. 24.
    17 - 6 =
  25. 25.
    2 - 1 =
  26. 26.
    18 - 8 =
  27. 27.
    5 + 6 =
  28. 28.
    10 - 8 =
  29. 29.
    8 + 5 =
  30. 30.
    10 + 7 =
  31. 31.
    16 - 10 =
  32. 32.
    6 + 9 =
  33. 33.
    4 - 3 =
  34. 34.
    9 + 6 =
  35. 35.
    18 - 7 =
  36. 36.
    5 + 10 =
  37. 37.
    12 + 7 =
  38. 38.
    20 - 19 =
  39. 39.
    7 + 12 =
  40. 40.
    9 + 4 =
  41. 41.
    10 - 2 =
  42. 42.
    10 + 8 =
  43. 43.
    7 - 6 =
  44. 44.
    1 + 14 =
  45. 45.
    15 - 13 =
  46. 46.
    13 + 4 =
  47. 47.
    16 + 4 =
  48. 48.
    16 + 1 =
  49. 49.
    11 + 6 =
  50. 50.
    11 + 8 =
  51. 51.
    20 - 10 =
  52. 52.
    9 + 3 =
  53. 53.
    20 - 8 =
  54. 54.
    19 - 10 =
  55. 55.
    5 - 1 =
  56. 56.
    15 - 3 =
  57. 57.
    5 - 3 =
  58. 58.
    14 + 4 =
  59. 59.
    18 - 16 =
  60. 60.
    10 - 1 =

What this worksheet covers

60 mixed operations problems fill this timed drill page; problem 21 asks "11 - 6", and the sheet stays at that level throughout. Eighteen of the 60 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 20. Further down, problem 41 asks "10 - 2". Common Core 2.OA.2 is the slot this page fills.

Skills practised

Grade 2 mixed operations means addition and subtraction within 100 and 1,000, and three-term problems. The skill on the page: mixed facts within 20. Concretely, the sheet tests whether a student can regroup past ten rather than counting up one at a time. Nineteen different answers appear across the 60 problems, so a student cannot copy one result down the page.

About the timed drill format

With 60 short problems such as problem 21, "11 - 6" and a timer box, this page measures recall rather than method — write the time down, and aim to beat it on Set B. Mixed facts under time pressure are the truest fluency check there is: nothing can be done by pattern.

Set A, Set B and Set C

The three sets come from the same generator with three different seeds: same skill, same layout, fresh numbers, and an answer key computed with the problems. Where Set A's problem 31 is "16 - 10", Set B's is "10 - 9".

How to use this worksheet

Sit alongside for this mixed operations timed drill. At grade 2 the useful information is not the score but which of the 60 problems drew a pause. Date the timed drill before filing it. Set C from six weeks later is the cheapest evidence you have that the mixed operations stuck.

The full guide to teaching mixed operationsTeaching mixed operations and order of operations: the grade 1–8 progression, why PEMDAS misleads, and how interleaved practice builds operation sense.

Other grade 2 mixed operations formats

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

  • DrillGrade 2 Mixed Addition and Subtraction Within 100, 20 problems
  • Missing NumberGrade 2 Mixed Operations Missing Number, 24 problems
  • Mixed ReviewGrade 2 Mixed Operations Mixed Review, 24 problems
  • Word ProblemsGrade 2 Equal Groups and Halving, 16 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 2 topics

Six PDFs, no sign-up: three versions of this grade 2 mixed operations timed drill and three answer keys, each 60 problems long.

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