← Subtract by counting up lesson New set →

Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 400 · 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. 1.99 − 75 =
  2. 2.53 − 48 =
  3. 3.1006 − 991 =
  4. 4.214 − 186 =
  5. 5.55 − 31 =
  6. 6.506 − 479 =
  7. 7.303 − 295 =
  8. 8.305 − 293 =
  9. 9.1007 − 991 =
  10. 10.330 − 293 =
  11. 11.513 − 489 =
  12. 12.522 − 495 =
  13. 13.79 − 45 =
  14. 14.75 − 35 =
  15. 15.307 − 290 =
  16. 16.505 − 489 =
  17. 17.1026 − 994 =
  18. 18.125 − 84 =
  19. 19.1028 − 992 =
  20. 20.125 − 95 =
  21. 21.89 − 56 =
  22. 22.122 − 97 =
  23. 23.503 − 486 =
  24. 24.85 − 75 =
  25. 25.53 − 39 =
  26. 26.320 − 292 =
  27. 27.224 − 187 =
  28. 28.52 − 41 =
  29. 29.502 − 476 =
  30. 30.203 − 191 =
  31. 31.1005 − 978 =
  32. 32.1029 − 990 =
  33. 33.202 − 177 =
  34. 34.215 − 190 =
  35. 35.310 − 298 =
  36. 36.104 − 71 =
  37. 37.302 − 285 =
  38. 38.119 − 93 =
  39. 39.510 − 477 =
  40. 40.81 − 76 =

Answer key

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

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