← Subtract by counting up lesson New set →

Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 660 · 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. 1.105 − 75 =
  2. 2.323 − 284 =
  3. 3.81 − 74 =
  4. 4.109 − 82 =
  5. 5.117 − 97 =
  6. 6.130 − 80 =
  7. 7.329 − 292 =
  8. 8.329 − 284 =
  9. 9.102 − 60 =
  10. 10.1029 − 982 =
  11. 11.84 − 60 =
  12. 12.72 − 29 =
  13. 13.122 − 93 =
  14. 14.101 − 96 =
  15. 15.64 − 28 =
  16. 16.1026 − 992 =
  17. 17.109 − 78 =
  18. 18.517 − 492 =
  19. 19.514 − 482 =
  20. 20.84 − 71 =
  21. 21.208 − 192 =
  22. 22.202 − 191 =
  23. 23.52 − 32 =
  24. 24.59 − 45 =
  25. 25.56 − 29 =
  26. 26.119 − 91 =
  27. 27.325 − 281 =
  28. 28.116 − 92 =
  29. 29.91 − 59 =
  30. 30.201 − 192 =
  31. 31.208 − 184 =
  32. 32.1002 − 992 =
  33. 33.110 − 75 =
  34. 34.75 − 47 =
  35. 35.65 − 31 =
  36. 36.208 − 177 =
  37. 37.229 − 175 =
  38. 38.303 − 280 =
  39. 39.507 − 489 =
  40. 40.1018 − 982 =

Answer key

  1. 30
  2. 39
  3. 7
  4. 27
  5. 20
  6. 50
  7. 37
  8. 45
  9. 42
  10. 47
  11. 24
  12. 43
  13. 29
  14. 5
  15. 36
  16. 34
  17. 31
  18. 25
  19. 32
  20. 13
  21. 16
  22. 11
  23. 20
  24. 14
  25. 27
  26. 28
  27. 44
  28. 24
  29. 32
  30. 9
  31. 24
  32. 10
  33. 35
  34. 28
  35. 34
  36. 31
  37. 54
  38. 23
  39. 18
  40. 36

Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths