← Subtract by counting up lesson New set →

Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 15 · 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. 1.101 − 98 =
  2. 2.72 − 28 =
  3. 3.112 − 82 =
  4. 4.104 − 76 =
  5. 5.65 − 34 =
  6. 6.102 − 93 =
  7. 7.1001 − 989 =
  8. 8.227 − 182 =
  9. 9.512 − 493 =
  10. 10.123 − 87 =
  11. 11.313 − 291 =
  12. 12.1022 − 987 =
  13. 13.1016 − 992 =
  14. 14.223 − 176 =
  15. 15.105 − 89 =
  16. 16.516 − 488 =
  17. 17.1016 − 977 =
  18. 18.1002 − 986 =
  19. 19.505 − 490 =
  20. 20.224 − 197 =
  21. 21.77 − 44 =
  22. 22.505 − 496 =
  23. 23.128 − 91 =
  24. 24.520 − 495 =
  25. 25.1024 − 984 =
  26. 26.310 − 282 =
  27. 27.106 − 65 =
  28. 28.320 − 285 =
  29. 29.95 − 74 =
  30. 30.228 − 196 =
  31. 31.83 − 72 =
  32. 32.1005 − 989 =
  33. 33.307 − 279 =
  34. 34.89 − 78 =
  35. 35.1026 − 982 =
  36. 36.230 − 186 =
  37. 37.220 − 177 =
  38. 38.75 − 32 =
  39. 39.103 − 61 =
  40. 40.215 − 193 =

Answer key

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

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