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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 864 · 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. 1.99 − 62 =
  2. 2.107 − 98 =
  3. 3.506 − 488 =
  4. 4.103 − 91 =
  5. 5.120 − 96 =
  6. 6.1026 − 990 =
  7. 7.202 − 189 =
  8. 8.99 − 71 =
  9. 9.304 − 296 =
  10. 10.527 − 490 =
  11. 11.504 − 484 =
  12. 12.503 − 496 =
  13. 13.105 − 79 =
  14. 14.111 − 78 =
  15. 15.219 − 176 =
  16. 16.96 − 55 =
  17. 17.317 − 289 =
  18. 18.96 − 59 =
  19. 19.1010 − 979 =
  20. 20.71 − 46 =
  21. 21.514 − 475 =
  22. 22.87 − 57 =
  23. 23.65 − 31 =
  24. 24.330 − 294 =
  25. 25.110 − 76 =
  26. 26.127 − 97 =
  27. 27.91 − 59 =
  28. 28.130 − 95 =
  29. 29.305 − 297 =
  30. 30.330 − 282 =
  31. 31.507 − 492 =
  32. 32.64 − 45 =
  33. 33.528 − 486 =
  34. 34.515 − 496 =
  35. 35.120 − 93 =
  36. 36.86 − 73 =
  37. 37.201 − 182 =
  38. 38.205 − 181 =
  39. 39.54 − 47 =
  40. 40.516 − 483 =

Answer key

  1. 37
  2. 9
  3. 18
  4. 12
  5. 24
  6. 36
  7. 13
  8. 28
  9. 8
  10. 37
  11. 20
  12. 7
  13. 26
  14. 33
  15. 43
  16. 41
  17. 28
  18. 37
  19. 31
  20. 25
  21. 39
  22. 30
  23. 34
  24. 36
  25. 34
  26. 30
  27. 32
  28. 35
  29. 8
  30. 48
  31. 15
  32. 19
  33. 42
  34. 19
  35. 27
  36. 13
  37. 19
  38. 24
  39. 7
  40. 33

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