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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 632 · 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. 1.327 − 290 =
  2. 2.108 − 73 =
  3. 3.87 − 60 =
  4. 4.91 − 61 =
  5. 5.521 − 498 =
  6. 6.1021 − 979 =
  7. 7.512 − 493 =
  8. 8.57 − 43 =
  9. 9.211 − 193 =
  10. 10.56 − 27 =
  11. 11.212 − 190 =
  12. 12.202 − 197 =
  13. 13.517 − 480 =
  14. 14.58 − 33 =
  15. 15.512 − 481 =
  16. 16.301 − 279 =
  17. 17.1005 − 994 =
  18. 18.325 − 293 =
  19. 19.75 − 39 =
  20. 20.98 − 56 =
  21. 21.1006 − 983 =
  22. 22.86 − 75 =
  23. 23.214 − 178 =
  24. 24.203 − 175 =
  25. 25.513 − 489 =
  26. 26.75 − 41 =
  27. 27.85 − 74 =
  28. 28.88 − 65 =
  29. 29.53 − 35 =
  30. 30.70 − 28 =
  31. 31.88 − 66 =
  32. 32.505 − 478 =
  33. 33.65 − 28 =
  34. 34.1006 − 988 =
  35. 35.210 − 197 =
  36. 36.120 − 93 =
  37. 37.321 − 297 =
  38. 38.112 − 78 =
  39. 39.211 − 195 =
  40. 40.201 − 196 =

Answer key

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

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