MathDrillSheets
Subtraction•Grade 1•Timed Drill

Grade 1 Subtraction Timed Drill

Grade 1 subtraction timed drill sheet: 60 problems on subtraction within 20, subtracting multiples of ten.

CCSSAligned to Common Core 1.OA.6: Add and subtract within 20, demonstrating fluency for addition and subtraction within 10 using strategies such as making ten and decomposing.

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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 - 17 =
  2. 2.
    80 - 30 =
  3. 3.
    5 - 3 =
  4. 4.
    40 - 20 =
  5. 5.
    15 - 3 =
  6. 6.
    80 - 70 =
  7. 7.
    6 - 2 =
  8. 8.
    90 - 30 =
  9. 9.
    13 - 1 =
  10. 10.
    20 - 10 =
  11. 11.
    17 - 15 =
  12. 12.
    50 - 40 =
  13. 13.
    3 - 2 =
  14. 14.
    50 - 10 =
  15. 15.
    8 - 4 =
  16. 16.
    60 - 40 =
  17. 17.
    2 - 1 =
  18. 18.
    50 - 20 =
  19. 19.
    8 - 2 =
  20. 20.
    80 - 40 =
  21. 21.
    5 - 4 =
  22. 22.
    90 - 80 =
  23. 23.
    4 - 2 =
  24. 24.
    80 - 50 =
  25. 25.
    11 - 7 =
  26. 26.
    70 - 30 =
  27. 27.
    13 - 10 =
  28. 28.
    40 - 30 =
  29. 29.
    8 - 1 =
  30. 30.
    60 - 30 =
  31. 31.
    9 - 5 =
  32. 32.
    80 - 60 =
  33. 33.
    14 - 6 =
  34. 34.
    90 - 60 =
  35. 35.
    12 - 3 =
  36. 36.
    70 - 50 =
  37. 37.
    14 - 13 =
  38. 38.
    70 - 10 =
  39. 39.
    6 - 3 =
  40. 40.
    30 - 20 =
  41. 41.
    15 - 7 =
  42. 42.
    30 - 10 =
  43. 43.
    14 - 5 =
  44. 44.
    80 - 20 =
  45. 45.
    6 - 1 =
  46. 46.
    90 - 40 =
  47. 47.
    14 - 1 =
  48. 48.
    60 - 50 =
  49. 49.
    14 - 4 =
  50. 50.
    60 - 20 =
  51. 51.
    17 - 14 =
  52. 52.
    70 - 40 =
  53. 53.
    11 - 9 =
  54. 54.
    40 - 10 =
  55. 55.
    3 - 1 =
  56. 56.
    90 - 50 =
  57. 57.
    20 - 5 =
  58. 58.
    70 - 20 =
  59. 59.
    16 - 1 =
  60. 60.
    60 - 10 =

What this worksheet covers

This is a 60-problem timed drill for grade 1 subtraction, printed in black and white with the key on page two. What makes this set particular: seven 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 90. Problems 21 and 41, for instance, are "5 - 4" and "15 - 7". It is written against Common Core 1.OA.6 — Operations & Algebraic Thinking, grade 1.

Skills practised

The grade 1 subtraction sequence covers facts within 20, unknown-addend equations, and subtracting multiples of ten; this page sits inside it. Specifically, the problems practise subtraction within 20 and subtracting multiples of ten. To finish it, a student has to regroup past ten rather than counting up one at a time. Eighteen different answers appear across the 60 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 60; a realistic target for a page like this, where problem 21, "5 - 4" is a typical item, is three to four minutes. Subtraction facts are the slowest of the four to become automatic; a timer shows which ones are still being counted.

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 31 is "9 - 5", Set B's is "5 - 2".

How to use this worksheet

Five focused minutes beats twenty distracted ones at grade 1. Fold this timed drill in half, do one part of the 60 problems today and the rest tomorrow, and let the student use fingers or counters if they want them. Use the key as a check, not as a grade; none of the 60 problems needs a score attached to be useful.

The full guide to teaching subtractionTeaching subtraction from take-away to signed numbers: the grade 1–8 progression, borrowing across zeros, and the six error patterns that stall students.

Other grade 1 subtraction formats

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

  • Drill — Subtracting Multiples of 10 — Grade 1 Practice, 22 problems
  • Missing Number — Grade 1 Subtraction Missing Number, 24 problems
  • Mixed Review — Grade 1 Subtraction Mixed Review, 24 problems
  • Word Problems — Grade 1 Addition and Subtraction Word Problems, 12 problems
  • Vertical Format — Grade 1 Subtraction Vertical Format, 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 1 topics

Print as many copies of this grade 1 subtraction timed drill as you need; Sets A, B and C and their keys are six separate PDFs, all free.

← All grade 1 subtraction worksheetsSubtraction, every gradeGrade 1 mathBuild your own in the generatorCommon Core 1.OA.6

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