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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 764 · 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. 1.211 − 186 =
  2. 2.303 − 277 =
  3. 3.70 − 47 =
  4. 4.80 − 34 =
  5. 5.79 − 45 =
  6. 6.61 − 46 =
  7. 7.89 − 66 =
  8. 8.512 − 492 =
  9. 9.204 − 180 =
  10. 10.1006 − 993 =
  11. 11.88 − 67 =
  12. 12.52 − 48 =
  13. 13.227 − 194 =
  14. 14.72 − 42 =
  15. 15.99 − 66 =
  16. 16.51 − 45 =
  17. 17.105 − 78 =
  18. 18.513 − 497 =
  19. 19.93 − 73 =
  20. 20.68 − 34 =
  21. 21.68 − 25 =
  22. 22.318 − 295 =
  23. 23.53 − 32 =
  24. 24.96 − 57 =
  25. 25.503 − 475 =
  26. 26.112 − 94 =
  27. 27.316 − 296 =
  28. 28.92 − 60 =
  29. 29.52 − 47 =
  30. 30.76 − 35 =
  31. 31.69 − 26 =
  32. 32.318 − 292 =
  33. 33.505 − 479 =
  34. 34.1024 − 994 =
  35. 35.62 − 48 =
  36. 36.76 − 29 =
  37. 37.506 − 493 =
  38. 38.123 − 91 =
  39. 39.67 − 31 =
  40. 40.65 − 32 =

Answer key

  1. 25
  2. 26
  3. 23
  4. 46
  5. 34
  6. 15
  7. 23
  8. 20
  9. 24
  10. 13
  11. 21
  12. 4
  13. 33
  14. 30
  15. 33
  16. 6
  17. 27
  18. 16
  19. 20
  20. 34
  21. 43
  22. 23
  23. 21
  24. 39
  25. 28
  26. 18
  27. 20
  28. 32
  29. 5
  30. 41
  31. 43
  32. 26
  33. 26
  34. 30
  35. 14
  36. 47
  37. 13
  38. 32
  39. 36
  40. 33

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