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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 843 · 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. 1.61 − 30 =
  2. 2.218 − 193 =
  3. 3.504 − 486 =
  4. 4.76 − 47 =
  5. 5.201 − 193 =
  6. 6.1002 − 991 =
  7. 7.56 − 38 =
  8. 8.84 − 74 =
  9. 9.53 − 30 =
  10. 10.129 − 75 =
  11. 11.512 − 490 =
  12. 12.309 − 285 =
  13. 13.111 − 96 =
  14. 14.313 − 289 =
  15. 15.312 − 281 =
  16. 16.510 − 496 =
  17. 17.1021 − 989 =
  18. 18.53 − 44 =
  19. 19.52 − 43 =
  20. 20.106 − 94 =
  21. 21.1004 − 995 =
  22. 22.509 − 477 =
  23. 23.511 − 490 =
  24. 24.101 − 98 =
  25. 25.330 − 283 =
  26. 26.317 − 279 =
  27. 27.100 − 58 =
  28. 28.208 − 177 =
  29. 29.220 − 194 =
  30. 30.223 − 193 =
  31. 31.130 − 87 =
  32. 32.1001 − 990 =
  33. 33.82 − 61 =
  34. 34.70 − 47 =
  35. 35.67 − 46 =
  36. 36.1008 − 997 =
  37. 37.72 − 36 =
  38. 38.221 − 188 =
  39. 39.117 − 97 =
  40. 40.217 − 180 =

Answer key

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

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