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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 325 · 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. 1.520 − 476 =
  2. 2.73 − 39 =
  3. 3.97 − 59 =
  4. 4.212 − 192 =
  5. 5.208 − 196 =
  6. 6.122 − 76 =
  7. 7.96 − 63 =
  8. 8.57 − 30 =
  9. 9.502 − 496 =
  10. 10.120 − 86 =
  11. 11.65 − 38 =
  12. 12.508 − 489 =
  13. 13.98 − 61 =
  14. 14.88 − 72 =
  15. 15.125 − 89 =
  16. 16.99 − 73 =
  17. 17.307 − 291 =
  18. 18.529 − 475 =
  19. 19.521 − 480 =
  20. 20.54 − 25 =
  21. 21.527 − 486 =
  22. 22.110 − 60 =
  23. 23.1001 − 984 =
  24. 24.55 − 38 =
  25. 25.124 − 95 =
  26. 26.1007 − 986 =
  27. 27.1028 − 984 =
  28. 28.502 − 487 =
  29. 29.105 − 71 =
  30. 30.319 − 296 =
  31. 31.501 − 491 =
  32. 32.107 − 80 =
  33. 33.86 − 66 =
  34. 34.502 − 475 =
  35. 35.210 − 188 =
  36. 36.507 − 483 =
  37. 37.91 − 70 =
  38. 38.99 − 74 =
  39. 39.120 − 79 =
  40. 40.104 − 85 =

Answer key

  1. 44
  2. 34
  3. 38
  4. 20
  5. 12
  6. 46
  7. 33
  8. 27
  9. 6
  10. 34
  11. 27
  12. 19
  13. 37
  14. 16
  15. 36
  16. 26
  17. 16
  18. 54
  19. 41
  20. 29
  21. 41
  22. 50
  23. 17
  24. 17
  25. 29
  26. 21
  27. 44
  28. 15
  29. 34
  30. 23
  31. 10
  32. 27
  33. 20
  34. 27
  35. 22
  36. 24
  37. 21
  38. 25
  39. 41
  40. 19

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