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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 796 · 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. 1.83 − 62 =
  2. 2.1027 − 985 =
  3. 3.512 − 487 =
  4. 4.85 − 76 =
  5. 5.506 − 497 =
  6. 6.515 − 477 =
  7. 7.51 − 32 =
  8. 8.506 − 489 =
  9. 9.63 − 38 =
  10. 10.58 − 44 =
  11. 11.56 − 35 =
  12. 12.210 − 185 =
  13. 13.125 − 79 =
  14. 14.1004 − 988 =
  15. 15.91 − 64 =
  16. 16.58 − 27 =
  17. 17.106 − 95 =
  18. 18.78 − 29 =
  19. 19.528 − 476 =
  20. 20.1004 − 997 =
  21. 21.1014 − 988 =
  22. 22.80 − 44 =
  23. 23.85 − 55 =
  24. 24.218 − 195 =
  25. 25.112 − 76 =
  26. 26.312 − 281 =
  27. 27.302 − 289 =
  28. 28.225 − 175 =
  29. 29.129 − 84 =
  30. 30.1025 − 992 =
  31. 31.81 − 59 =
  32. 32.83 − 73 =
  33. 33.303 − 276 =
  34. 34.530 − 486 =
  35. 35.304 − 297 =
  36. 36.323 − 291 =
  37. 37.1017 − 979 =
  38. 38.52 − 40 =
  39. 39.92 − 74 =
  40. 40.74 − 48 =

Answer key

  1. 21
  2. 42
  3. 25
  4. 9
  5. 9
  6. 38
  7. 19
  8. 17
  9. 25
  10. 14
  11. 21
  12. 25
  13. 46
  14. 16
  15. 27
  16. 31
  17. 11
  18. 49
  19. 52
  20. 7
  21. 26
  22. 36
  23. 30
  24. 23
  25. 36
  26. 31
  27. 13
  28. 50
  29. 45
  30. 33
  31. 22
  32. 10
  33. 27
  34. 44
  35. 7
  36. 32
  37. 38
  38. 12
  39. 18
  40. 26

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