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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 517 · 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. 1.109 − 62 =
  2. 2.52 − 43 =
  3. 3.56 − 40 =
  4. 4.97 − 64 =
  5. 5.126 − 92 =
  6. 6.1029 − 998 =
  7. 7.201 − 183 =
  8. 8.65 − 47 =
  9. 9.74 − 25 =
  10. 10.215 − 198 =
  11. 11.1030 − 975 =
  12. 12.106 − 91 =
  13. 13.503 − 481 =
  14. 14.119 − 87 =
  15. 15.56 − 43 =
  16. 16.1006 − 993 =
  17. 17.522 − 476 =
  18. 18.212 − 196 =
  19. 19.1018 − 998 =
  20. 20.102 − 81 =
  21. 21.58 − 37 =
  22. 22.525 − 479 =
  23. 23.207 − 181 =
  24. 24.529 − 492 =
  25. 25.78 − 38 =
  26. 26.60 − 47 =
  27. 27.61 − 40 =
  28. 28.215 − 181 =
  29. 29.66 − 29 =
  30. 30.54 − 31 =
  31. 31.521 − 498 =
  32. 32.318 − 280 =
  33. 33.1015 − 997 =
  34. 34.71 − 34 =
  35. 35.318 − 290 =
  36. 36.1026 − 981 =
  37. 37.203 − 191 =
  38. 38.527 − 475 =
  39. 39.68 − 44 =
  40. 40.304 − 275 =

Answer key

  1. 47
  2. 9
  3. 16
  4. 33
  5. 34
  6. 31
  7. 18
  8. 18
  9. 49
  10. 17
  11. 55
  12. 15
  13. 22
  14. 32
  15. 13
  16. 13
  17. 46
  18. 16
  19. 20
  20. 21
  21. 21
  22. 46
  23. 26
  24. 37
  25. 40
  26. 13
  27. 21
  28. 34
  29. 37
  30. 23
  31. 23
  32. 38
  33. 18
  34. 37
  35. 28
  36. 45
  37. 12
  38. 52
  39. 24
  40. 29

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