← Subtract by counting up lesson New set →

Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 242 · 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. 1.102 − 78 =
  2. 2.61 − 36 =
  3. 3.88 − 64 =
  4. 4.124 − 97 =
  5. 5.1017 − 989 =
  6. 6.1011 − 987 =
  7. 7.106 − 74 =
  8. 8.95 − 59 =
  9. 9.105 − 92 =
  10. 10.226 − 179 =
  11. 11.102 − 76 =
  12. 12.98 − 73 =
  13. 13.501 − 493 =
  14. 14.221 − 197 =
  15. 15.86 − 63 =
  16. 16.1009 − 982 =
  17. 17.73 − 38 =
  18. 18.318 − 287 =
  19. 19.67 − 31 =
  20. 20.211 − 186 =
  21. 21.1009 − 980 =
  22. 22.76 − 25 =
  23. 23.223 − 180 =
  24. 24.126 − 98 =
  25. 25.77 − 26 =
  26. 26.224 − 198 =
  27. 27.229 − 194 =
  28. 28.507 − 495 =
  29. 29.116 − 77 =
  30. 30.103 − 97 =
  31. 31.316 − 284 =
  32. 32.220 − 180 =
  33. 33.74 − 41 =
  34. 34.83 − 55 =
  35. 35.304 − 282 =
  36. 36.1007 − 987 =
  37. 37.206 − 197 =
  38. 38.1012 − 982 =
  39. 39.518 − 498 =
  40. 40.302 − 292 =

Answer key

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

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