← Subtract by counting up lesson New set →

Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 900 · 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. 1.80 − 25 =
  2. 2.521 − 482 =
  3. 3.504 − 498 =
  4. 4.220 − 183 =
  5. 5.1009 − 976 =
  6. 6.116 − 83 =
  7. 7.204 − 191 =
  8. 8.116 − 85 =
  9. 9.325 − 285 =
  10. 10.72 − 37 =
  11. 11.1010 − 993 =
  12. 12.56 − 32 =
  13. 13.119 − 78 =
  14. 14.204 − 180 =
  15. 15.87 − 72 =
  16. 16.325 − 275 =
  17. 17.129 − 79 =
  18. 18.1006 − 986 =
  19. 19.58 − 40 =
  20. 20.512 − 497 =
  21. 21.66 − 41 =
  22. 22.215 − 175 =
  23. 23.302 − 276 =
  24. 24.84 − 73 =
  25. 25.328 − 293 =
  26. 26.306 − 293 =
  27. 27.91 − 67 =
  28. 28.107 − 92 =
  29. 29.92 − 71 =
  30. 30.224 − 184 =
  31. 31.1028 − 978 =
  32. 32.213 − 198 =
  33. 33.506 − 494 =
  34. 34.60 − 37 =
  35. 35.513 − 489 =
  36. 36.93 − 76 =
  37. 37.101 − 67 =
  38. 38.105 − 92 =
  39. 39.305 − 285 =
  40. 40.105 − 67 =

Answer key

  1. 55
  2. 39
  3. 6
  4. 37
  5. 33
  6. 33
  7. 13
  8. 31
  9. 40
  10. 35
  11. 17
  12. 24
  13. 41
  14. 24
  15. 15
  16. 50
  17. 50
  18. 20
  19. 18
  20. 15
  21. 25
  22. 40
  23. 26
  24. 11
  25. 35
  26. 13
  27. 24
  28. 15
  29. 21
  30. 40
  31. 50
  32. 15
  33. 12
  34. 23
  35. 24
  36. 17
  37. 34
  38. 13
  39. 20
  40. 38

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