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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 44 · 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. 1.527 − 480 =
  2. 2.103 − 58 =
  3. 3.98 − 70 =
  4. 4.1030 − 994 =
  5. 5.317 − 288 =
  6. 6.118 − 95 =
  7. 7.119 − 76 =
  8. 8.58 − 29 =
  9. 9.104 − 90 =
  10. 10.87 − 63 =
  11. 11.309 − 286 =
  12. 12.1015 − 995 =
  13. 13.313 − 290 =
  14. 14.1003 − 995 =
  15. 15.330 − 276 =
  16. 16.1016 − 993 =
  17. 17.507 − 485 =
  18. 18.215 − 178 =
  19. 19.202 − 175 =
  20. 20.106 − 83 =
  21. 21.1029 − 983 =
  22. 22.205 − 187 =
  23. 23.322 − 296 =
  24. 24.53 − 46 =
  25. 25.101 − 59 =
  26. 26.86 − 58 =
  27. 27.525 − 498 =
  28. 28.525 − 486 =
  29. 29.1022 − 988 =
  30. 30.503 − 498 =
  31. 31.104 − 92 =
  32. 32.108 − 94 =
  33. 33.60 − 44 =
  34. 34.106 − 98 =
  35. 35.1009 − 975 =
  36. 36.99 − 67 =
  37. 37.211 − 193 =
  38. 38.108 − 69 =
  39. 39.79 − 32 =
  40. 40.56 − 31 =

Answer key

  1. 47
  2. 45
  3. 28
  4. 36
  5. 29
  6. 23
  7. 43
  8. 29
  9. 14
  10. 24
  11. 23
  12. 20
  13. 23
  14. 8
  15. 54
  16. 23
  17. 22
  18. 37
  19. 27
  20. 23
  21. 46
  22. 18
  23. 26
  24. 7
  25. 42
  26. 28
  27. 27
  28. 39
  29. 34
  30. 5
  31. 12
  32. 14
  33. 16
  34. 8
  35. 34
  36. 32
  37. 18
  38. 39
  39. 47
  40. 25

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