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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 636 · 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. 1.98 − 64 =
  2. 2.504 − 497 =
  3. 3.1022 − 995 =
  4. 4.307 − 293 =
  5. 5.130 − 92 =
  6. 6.110 − 75 =
  7. 7.102 − 79 =
  8. 8.99 − 73 =
  9. 9.115 − 91 =
  10. 10.82 − 62 =
  11. 11.520 − 488 =
  12. 12.101 − 97 =
  13. 13.85 − 67 =
  14. 14.104 − 68 =
  15. 15.56 − 33 =
  16. 16.53 − 44 =
  17. 17.85 − 56 =
  18. 18.110 − 78 =
  19. 19.69 − 44 =
  20. 20.90 − 77 =
  21. 21.518 − 491 =
  22. 22.97 − 56 =
  23. 23.203 − 186 =
  24. 24.70 − 26 =
  25. 25.1008 − 996 =
  26. 26.213 − 198 =
  27. 27.57 − 41 =
  28. 28.320 − 279 =
  29. 29.1019 − 987 =
  30. 30.1018 − 983 =
  31. 31.221 − 193 =
  32. 32.501 − 480 =
  33. 33.108 − 92 =
  34. 34.95 − 74 =
  35. 35.1020 − 998 =
  36. 36.55 − 48 =
  37. 37.107 − 93 =
  38. 38.76 − 40 =
  39. 39.310 − 280 =
  40. 40.329 − 277 =

Answer key

  1. 34
  2. 7
  3. 27
  4. 14
  5. 38
  6. 35
  7. 23
  8. 26
  9. 24
  10. 20
  11. 32
  12. 4
  13. 18
  14. 36
  15. 23
  16. 9
  17. 29
  18. 32
  19. 25
  20. 13
  21. 27
  22. 41
  23. 17
  24. 44
  25. 12
  26. 15
  27. 16
  28. 41
  29. 32
  30. 35
  31. 28
  32. 21
  33. 16
  34. 21
  35. 22
  36. 7
  37. 14
  38. 36
  39. 30
  40. 52

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