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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 462 · 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. 1.122 − 95 =
  2. 2.510 − 496 =
  3. 3.106 − 68 =
  4. 4.115 − 76 =
  5. 5.501 − 493 =
  6. 6.208 − 192 =
  7. 7.122 − 88 =
  8. 8.102 − 71 =
  9. 9.308 − 281 =
  10. 10.505 − 497 =
  11. 11.206 − 186 =
  12. 12.503 − 493 =
  13. 13.127 − 91 =
  14. 14.1028 − 976 =
  15. 15.58 − 27 =
  16. 16.1019 − 990 =
  17. 17.505 − 478 =
  18. 18.125 − 93 =
  19. 19.60 − 27 =
  20. 20.84 − 58 =
  21. 21.55 − 44 =
  22. 22.301 − 287 =
  23. 23.100 − 69 =
  24. 24.225 − 185 =
  25. 25.220 − 180 =
  26. 26.96 − 55 =
  27. 27.100 − 60 =
  28. 28.54 − 25 =
  29. 29.1028 − 998 =
  30. 30.69 − 46 =
  31. 31.73 − 39 =
  32. 32.106 − 91 =
  33. 33.79 − 40 =
  34. 34.206 − 180 =
  35. 35.320 − 283 =
  36. 36.202 − 193 =
  37. 37.1021 − 993 =
  38. 38.230 − 190 =
  39. 39.312 − 280 =
  40. 40.1007 − 998 =

Answer key

  1. 27
  2. 14
  3. 38
  4. 39
  5. 8
  6. 16
  7. 34
  8. 31
  9. 27
  10. 8
  11. 20
  12. 10
  13. 36
  14. 52
  15. 31
  16. 29
  17. 27
  18. 32
  19. 33
  20. 26
  21. 11
  22. 14
  23. 31
  24. 40
  25. 40
  26. 41
  27. 40
  28. 29
  29. 30
  30. 23
  31. 34
  32. 15
  33. 39
  34. 26
  35. 37
  36. 9
  37. 28
  38. 40
  39. 32
  40. 9

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