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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 48 · 40 questions
TalentJR

How to do it in your head (Count up): Start at the smaller number. Jump to the next ten, then the next hundred, then to the bigger number. Add up all the jumps.

NameDateTime takenScore ___ / 40
  1. 1.1024 − 983 =
  2. 2.1021 − 986 =
  3. 3.98 − 73 =
  4. 4.527 − 489 =
  5. 5.1008 − 976 =
  6. 6.88 − 59 =
  7. 7.110 − 67 =
  8. 8.127 − 75 =
  9. 9.312 − 275 =
  10. 10.1014 − 977 =
  11. 11.503 − 487 =
  12. 12.119 − 82 =
  13. 13.103 − 95 =
  14. 14.524 − 492 =
  15. 15.52 − 44 =
  16. 16.301 − 275 =
  17. 17.123 − 78 =
  18. 18.101 − 88 =
  19. 19.326 − 288 =
  20. 20.103 − 78 =
  21. 21.115 − 82 =
  22. 22.62 − 32 =
  23. 23.104 − 92 =
  24. 24.71 − 46 =
  25. 25.110 − 82 =
  26. 26.74 − 32 =
  27. 27.1004 − 998 =
  28. 28.75 − 40 =
  29. 29.65 − 47 =
  30. 30.129 − 91 =
  31. 31.90 − 57 =
  32. 32.116 − 85 =
  33. 33.507 − 497 =
  34. 34.114 − 98 =
  35. 35.122 − 97 =
  36. 36.1010 − 984 =
  37. 37.528 − 489 =
  38. 38.66 − 41 =
  39. 39.511 − 496 =
  40. 40.95 − 69 =

Answer key

  1. 41
  2. 35
  3. 25
  4. 38
  5. 32
  6. 29
  7. 43
  8. 52
  9. 37
  10. 37
  11. 16
  12. 37
  13. 8
  14. 32
  15. 8
  16. 26
  17. 45
  18. 13
  19. 38
  20. 25
  21. 33
  22. 30
  23. 12
  24. 25
  25. 28
  26. 42
  27. 6
  28. 35
  29. 18
  30. 38
  31. 33
  32. 31
  33. 10
  34. 16
  35. 25
  36. 26
  37. 39
  38. 25
  39. 15
  40. 26

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