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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 759 · 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. 1.229 − 189 =
  2. 2.63 − 29 =
  3. 3.84 − 61 =
  4. 4.60 − 31 =
  5. 5.225 − 192 =
  6. 6.53 − 31 =
  7. 7.104 − 60 =
  8. 8.1020 − 990 =
  9. 9.510 − 493 =
  10. 10.302 − 294 =
  11. 11.112 − 96 =
  12. 12.304 − 279 =
  13. 13.513 − 485 =
  14. 14.1014 − 983 =
  15. 15.527 − 483 =
  16. 16.95 − 59 =
  17. 17.307 − 287 =
  18. 18.1013 − 977 =
  19. 19.62 − 43 =
  20. 20.55 − 33 =
  21. 21.1022 − 990 =
  22. 22.1029 − 983 =
  23. 23.107 − 91 =
  24. 24.204 − 194 =
  25. 25.306 − 279 =
  26. 26.57 − 39 =
  27. 27.84 − 69 =
  28. 28.1017 − 992 =
  29. 29.523 − 482 =
  30. 30.310 − 284 =
  31. 31.211 − 182 =
  32. 32.525 − 493 =
  33. 33.101 − 60 =
  34. 34.329 − 281 =
  35. 35.73 − 45 =
  36. 36.1010 − 985 =
  37. 37.109 − 90 =
  38. 38.507 − 492 =
  39. 39.510 − 490 =
  40. 40.103 − 63 =

Answer key

  1. 40
  2. 34
  3. 23
  4. 29
  5. 33
  6. 22
  7. 44
  8. 30
  9. 17
  10. 8
  11. 16
  12. 25
  13. 28
  14. 31
  15. 44
  16. 36
  17. 20
  18. 36
  19. 19
  20. 22
  21. 32
  22. 46
  23. 16
  24. 10
  25. 27
  26. 18
  27. 15
  28. 25
  29. 41
  30. 26
  31. 29
  32. 32
  33. 41
  34. 48
  35. 28
  36. 25
  37. 19
  38. 15
  39. 20
  40. 40

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