← Subtract by counting up lesson New set →

Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 635 · 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. 1.81 − 73 =
  2. 2.505 − 480 =
  3. 3.67 − 37 =
  4. 4.1016 − 987 =
  5. 5.106 − 74 =
  6. 6.223 − 186 =
  7. 7.306 − 280 =
  8. 8.59 − 44 =
  9. 9.79 − 41 =
  10. 10.524 − 495 =
  11. 11.208 − 193 =
  12. 12.114 − 79 =
  13. 13.86 − 63 =
  14. 14.506 − 484 =
  15. 15.89 − 74 =
  16. 16.55 − 40 =
  17. 17.1012 − 979 =
  18. 18.501 − 489 =
  19. 19.229 − 184 =
  20. 20.58 − 44 =
  21. 21.51 − 36 =
  22. 22.86 − 78 =
  23. 23.317 − 291 =
  24. 24.85 − 71 =
  25. 25.110 − 94 =
  26. 26.516 − 476 =
  27. 27.316 − 277 =
  28. 28.120 − 79 =
  29. 29.323 − 285 =
  30. 30.1022 − 982 =
  31. 31.102 − 96 =
  32. 32.310 − 280 =
  33. 33.75 − 37 =
  34. 34.1030 − 997 =
  35. 35.1022 − 983 =
  36. 36.525 − 493 =
  37. 37.519 − 497 =
  38. 38.323 − 283 =
  39. 39.304 − 285 =
  40. 40.99 − 78 =

Answer key

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

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