← Subtract by counting up lesson New set →

Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 249 · 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. 1.103 − 91 =
  2. 2.510 − 483 =
  3. 3.1017 − 987 =
  4. 4.1014 − 975 =
  5. 5.230 − 179 =
  6. 6.519 − 482 =
  7. 7.506 − 497 =
  8. 8.109 − 92 =
  9. 9.326 − 293 =
  10. 10.66 − 39 =
  11. 11.324 − 284 =
  12. 12.308 − 283 =
  13. 13.1006 − 993 =
  14. 14.319 − 275 =
  15. 15.123 − 80 =
  16. 16.225 − 198 =
  17. 17.76 − 38 =
  18. 18.306 − 291 =
  19. 19.1025 − 975 =
  20. 20.125 − 91 =
  21. 21.504 − 480 =
  22. 22.204 − 193 =
  23. 23.81 − 61 =
  24. 24.103 − 56 =
  25. 25.521 − 491 =
  26. 26.519 − 495 =
  27. 27.317 − 276 =
  28. 28.86 − 72 =
  29. 29.530 − 496 =
  30. 30.1009 − 992 =
  31. 31.54 − 37 =
  32. 32.61 − 30 =
  33. 33.326 − 275 =
  34. 34.528 − 478 =
  35. 35.58 − 41 =
  36. 36.510 − 498 =
  37. 37.1029 − 984 =
  38. 38.127 − 84 =
  39. 39.83 − 72 =
  40. 40.210 − 194 =

Answer key

  1. 12
  2. 27
  3. 30
  4. 39
  5. 51
  6. 37
  7. 9
  8. 17
  9. 33
  10. 27
  11. 40
  12. 25
  13. 13
  14. 44
  15. 43
  16. 27
  17. 38
  18. 15
  19. 50
  20. 34
  21. 24
  22. 11
  23. 20
  24. 47
  25. 30
  26. 24
  27. 41
  28. 14
  29. 34
  30. 17
  31. 17
  32. 31
  33. 51
  34. 50
  35. 17
  36. 12
  37. 45
  38. 43
  39. 11
  40. 16

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