← Subtract by counting up lesson New set →

Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 284 · 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. 1.311 − 278 =
  2. 2.223 − 180 =
  3. 3.114 − 91 =
  4. 4.90 − 78 =
  5. 5.100 − 55 =
  6. 6.202 − 180 =
  7. 7.117 − 87 =
  8. 8.204 − 190 =
  9. 9.82 − 64 =
  10. 10.82 − 74 =
  11. 11.99 − 77 =
  12. 12.315 − 280 =
  13. 13.104 − 59 =
  14. 14.214 − 176 =
  15. 15.518 − 475 =
  16. 16.523 − 481 =
  17. 17.322 − 287 =
  18. 18.53 − 37 =
  19. 19.75 − 45 =
  20. 20.118 − 75 =
  21. 21.221 − 187 =
  22. 22.119 − 82 =
  23. 23.65 − 27 =
  24. 24.92 − 65 =
  25. 25.119 − 85 =
  26. 26.301 − 296 =
  27. 27.51 − 39 =
  28. 28.100 − 77 =
  29. 29.319 − 283 =
  30. 30.227 − 180 =
  31. 31.97 − 71 =
  32. 32.330 − 289 =
  33. 33.1004 − 998 =
  34. 34.83 − 61 =
  35. 35.110 − 66 =
  36. 36.1008 − 993 =
  37. 37.104 − 69 =
  38. 38.507 − 491 =
  39. 39.203 − 198 =
  40. 40.1010 − 987 =

Answer key

  1. 33
  2. 43
  3. 23
  4. 12
  5. 45
  6. 22
  7. 30
  8. 14
  9. 18
  10. 8
  11. 22
  12. 35
  13. 45
  14. 38
  15. 43
  16. 42
  17. 35
  18. 16
  19. 30
  20. 43
  21. 34
  22. 37
  23. 38
  24. 27
  25. 34
  26. 5
  27. 12
  28. 23
  29. 36
  30. 47
  31. 26
  32. 41
  33. 6
  34. 22
  35. 44
  36. 15
  37. 35
  38. 16
  39. 5
  40. 23

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