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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 72 · 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. 1.526 − 478 =
  2. 2.1021 − 976 =
  3. 3.229 − 180 =
  4. 4.127 − 79 =
  5. 5.67 − 43 =
  6. 6.203 − 196 =
  7. 7.67 − 33 =
  8. 8.509 − 480 =
  9. 9.118 − 77 =
  10. 10.1007 − 994 =
  11. 11.227 − 180 =
  12. 12.1014 − 988 =
  13. 13.207 − 196 =
  14. 14.101 − 76 =
  15. 15.511 − 492 =
  16. 16.60 − 29 =
  17. 17.529 − 486 =
  18. 18.72 − 36 =
  19. 19.323 − 295 =
  20. 20.208 − 196 =
  21. 21.527 − 487 =
  22. 22.51 − 45 =
  23. 23.1019 − 996 =
  24. 24.510 − 475 =
  25. 25.516 − 494 =
  26. 26.1022 − 996 =
  27. 27.54 − 36 =
  28. 28.1006 − 998 =
  29. 29.124 − 98 =
  30. 30.523 − 492 =
  31. 31.108 − 76 =
  32. 32.1008 − 986 =
  33. 33.1005 − 991 =
  34. 34.1021 − 991 =
  35. 35.1016 − 984 =
  36. 36.80 − 25 =
  37. 37.209 − 197 =
  38. 38.107 − 87 =
  39. 39.111 − 93 =
  40. 40.515 − 498 =

Answer key

  1. 48
  2. 45
  3. 49
  4. 48
  5. 24
  6. 7
  7. 34
  8. 29
  9. 41
  10. 13
  11. 47
  12. 26
  13. 11
  14. 25
  15. 19
  16. 31
  17. 43
  18. 36
  19. 28
  20. 12
  21. 40
  22. 6
  23. 23
  24. 35
  25. 22
  26. 26
  27. 18
  28. 8
  29. 26
  30. 31
  31. 32
  32. 22
  33. 14
  34. 30
  35. 32
  36. 55
  37. 12
  38. 20
  39. 18
  40. 17

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