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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 225 · 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. 1.1022 − 995 =
  2. 2.110 − 89 =
  3. 3.86 − 63 =
  4. 4.68 − 28 =
  5. 5.76 − 48 =
  6. 6.73 − 47 =
  7. 7.1006 − 998 =
  8. 8.64 − 47 =
  9. 9.209 − 193 =
  10. 10.1028 − 997 =
  11. 11.1002 − 998 =
  12. 12.510 − 481 =
  13. 13.221 − 179 =
  14. 14.1005 − 991 =
  15. 15.57 − 26 =
  16. 16.1018 − 977 =
  17. 17.521 − 485 =
  18. 18.218 − 181 =
  19. 19.1001 − 985 =
  20. 20.1008 − 992 =
  21. 21.82 − 63 =
  22. 22.1008 − 993 =
  23. 23.124 − 75 =
  24. 24.528 − 480 =
  25. 25.69 − 42 =
  26. 26.54 − 36 =
  27. 27.215 − 184 =
  28. 28.60 − 48 =
  29. 29.68 − 36 =
  30. 30.529 − 486 =
  31. 31.1011 − 996 =
  32. 32.85 − 74 =
  33. 33.101 − 84 =
  34. 34.502 − 482 =
  35. 35.522 − 488 =
  36. 36.501 − 496 =
  37. 37.528 − 496 =
  38. 38.82 − 72 =
  39. 39.69 − 43 =
  40. 40.211 − 198 =

Answer key

  1. 27
  2. 21
  3. 23
  4. 40
  5. 28
  6. 26
  7. 8
  8. 17
  9. 16
  10. 31
  11. 4
  12. 29
  13. 42
  14. 14
  15. 31
  16. 41
  17. 36
  18. 37
  19. 16
  20. 16
  21. 19
  22. 15
  23. 49
  24. 48
  25. 27
  26. 18
  27. 31
  28. 12
  29. 32
  30. 43
  31. 15
  32. 11
  33. 17
  34. 20
  35. 34
  36. 5
  37. 32
  38. 10
  39. 26
  40. 13

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