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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 628 · 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 − 59 =
  2. 2.61 − 38 =
  3. 3.86 − 55 =
  4. 4.102 − 78 =
  5. 5.75 − 28 =
  6. 6.54 − 38 =
  7. 7.511 − 487 =
  8. 8.1001 − 993 =
  9. 9.215 − 194 =
  10. 10.1006 − 988 =
  11. 11.87 − 68 =
  12. 12.217 − 177 =
  13. 13.106 − 73 =
  14. 14.1028 − 994 =
  15. 15.58 − 31 =
  16. 16.87 − 61 =
  17. 17.103 − 79 =
  18. 18.127 − 96 =
  19. 19.116 − 92 =
  20. 20.54 − 37 =
  21. 21.78 − 44 =
  22. 22.312 − 291 =
  23. 23.77 − 46 =
  24. 24.524 − 484 =
  25. 25.105 − 81 =
  26. 26.508 − 487 =
  27. 27.53 − 39 =
  28. 28.329 − 278 =
  29. 29.102 − 56 =
  30. 30.56 − 43 =
  31. 31.107 − 80 =
  32. 32.227 − 186 =
  33. 33.1006 − 982 =
  34. 34.316 − 278 =
  35. 35.119 − 86 =
  36. 36.203 − 190 =
  37. 37.1009 − 975 =
  38. 38.502 − 484 =
  39. 39.201 − 185 =
  40. 40.79 − 28 =

Answer key

  1. 39
  2. 23
  3. 31
  4. 24
  5. 47
  6. 16
  7. 24
  8. 8
  9. 21
  10. 18
  11. 19
  12. 40
  13. 33
  14. 34
  15. 27
  16. 26
  17. 24
  18. 31
  19. 24
  20. 17
  21. 34
  22. 21
  23. 31
  24. 40
  25. 24
  26. 21
  27. 14
  28. 51
  29. 46
  30. 13
  31. 27
  32. 41
  33. 24
  34. 38
  35. 33
  36. 13
  37. 34
  38. 18
  39. 16
  40. 51

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