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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 452 · 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. 1.309 − 297 =
  2. 2.86 − 55 =
  3. 3.201 − 184 =
  4. 4.53 − 43 =
  5. 5.88 − 78 =
  6. 6.85 − 69 =
  7. 7.53 − 36 =
  8. 8.63 − 34 =
  9. 9.102 − 93 =
  10. 10.528 − 476 =
  11. 11.1030 − 996 =
  12. 12.71 − 39 =
  13. 13.69 − 48 =
  14. 14.202 − 190 =
  15. 15.502 − 498 =
  16. 16.520 − 479 =
  17. 17.1020 − 982 =
  18. 18.1030 − 993 =
  19. 19.314 − 280 =
  20. 20.1024 − 997 =
  21. 21.117 − 92 =
  22. 22.329 − 288 =
  23. 23.123 − 94 =
  24. 24.308 − 289 =
  25. 25.313 − 285 =
  26. 26.323 − 292 =
  27. 27.320 − 288 =
  28. 28.510 − 488 =
  29. 29.73 − 32 =
  30. 30.518 − 483 =
  31. 31.116 − 76 =
  32. 32.94 − 55 =
  33. 33.226 − 193 =
  34. 34.54 − 34 =
  35. 35.78 − 35 =
  36. 36.118 − 94 =
  37. 37.310 − 287 =
  38. 38.71 − 25 =
  39. 39.225 − 175 =
  40. 40.81 − 75 =

Answer key

  1. 12
  2. 31
  3. 17
  4. 10
  5. 10
  6. 16
  7. 17
  8. 29
  9. 9
  10. 52
  11. 34
  12. 32
  13. 21
  14. 12
  15. 4
  16. 41
  17. 38
  18. 37
  19. 34
  20. 27
  21. 25
  22. 41
  23. 29
  24. 19
  25. 28
  26. 31
  27. 32
  28. 22
  29. 41
  30. 35
  31. 40
  32. 39
  33. 33
  34. 20
  35. 43
  36. 24
  37. 23
  38. 46
  39. 50
  40. 6

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