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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 726 · 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. 1.507 − 479 =
  2. 2.61 − 36 =
  3. 3.304 − 298 =
  4. 4.125 − 79 =
  5. 5.1014 − 982 =
  6. 6.74 − 27 =
  7. 7.117 − 87 =
  8. 8.528 − 494 =
  9. 9.103 − 83 =
  10. 10.84 − 75 =
  11. 11.1004 − 989 =
  12. 12.124 − 80 =
  13. 13.201 − 192 =
  14. 14.100 − 63 =
  15. 15.83 − 68 =
  16. 16.98 − 69 =
  17. 17.524 − 495 =
  18. 18.214 − 194 =
  19. 19.93 − 67 =
  20. 20.1017 − 989 =
  21. 21.508 − 477 =
  22. 22.505 − 494 =
  23. 23.91 − 55 =
  24. 24.119 − 93 =
  25. 25.519 − 493 =
  26. 26.1009 − 977 =
  27. 27.70 − 43 =
  28. 28.321 − 285 =
  29. 29.122 − 87 =
  30. 30.507 − 498 =
  31. 31.511 − 493 =
  32. 32.98 − 77 =
  33. 33.108 − 64 =
  34. 34.516 − 484 =
  35. 35.1012 − 996 =
  36. 36.103 − 87 =
  37. 37.86 − 56 =
  38. 38.510 − 480 =
  39. 39.314 − 295 =
  40. 40.76 − 26 =

Answer key

  1. 28
  2. 25
  3. 6
  4. 46
  5. 32
  6. 47
  7. 30
  8. 34
  9. 20
  10. 9
  11. 15
  12. 44
  13. 9
  14. 37
  15. 15
  16. 29
  17. 29
  18. 20
  19. 26
  20. 28
  21. 31
  22. 11
  23. 36
  24. 26
  25. 26
  26. 32
  27. 27
  28. 36
  29. 35
  30. 9
  31. 18
  32. 21
  33. 44
  34. 32
  35. 16
  36. 16
  37. 30
  38. 30
  39. 19
  40. 50

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