← Subtract by counting up lesson New set →

Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 66 · 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. 1.511 − 489 =
  2. 2.109 − 72 =
  3. 3.130 − 81 =
  4. 4.85 − 78 =
  5. 5.69 − 48 =
  6. 6.1022 − 982 =
  7. 7.67 − 34 =
  8. 8.102 − 69 =
  9. 9.111 − 94 =
  10. 10.309 − 287 =
  11. 11.230 − 178 =
  12. 12.84 − 70 =
  13. 13.326 − 286 =
  14. 14.90 − 65 =
  15. 15.504 − 488 =
  16. 16.102 − 89 =
  17. 17.74 − 33 =
  18. 18.506 − 479 =
  19. 19.307 − 298 =
  20. 20.307 − 290 =
  21. 21.326 − 283 =
  22. 22.529 − 477 =
  23. 23.104 − 78 =
  24. 24.320 − 298 =
  25. 25.228 − 188 =
  26. 26.522 − 493 =
  27. 27.330 − 280 =
  28. 28.228 − 190 =
  29. 29.119 − 98 =
  30. 30.230 − 181 =
  31. 31.527 − 498 =
  32. 32.104 − 62 =
  33. 33.118 − 87 =
  34. 34.87 − 57 =
  35. 35.508 − 481 =
  36. 36.86 − 62 =
  37. 37.84 − 60 =
  38. 38.119 − 83 =
  39. 39.1024 − 995 =
  40. 40.112 − 76 =

Answer key

  1. 22
  2. 37
  3. 49
  4. 7
  5. 21
  6. 40
  7. 33
  8. 33
  9. 17
  10. 22
  11. 52
  12. 14
  13. 40
  14. 25
  15. 16
  16. 13
  17. 41
  18. 27
  19. 9
  20. 17
  21. 43
  22. 52
  23. 26
  24. 22
  25. 40
  26. 29
  27. 50
  28. 38
  29. 21
  30. 49
  31. 29
  32. 42
  33. 31
  34. 30
  35. 27
  36. 24
  37. 24
  38. 36
  39. 29
  40. 36

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