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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 168 · 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. 1.528 − 477 =
  2. 2.88 − 60 =
  3. 3.106 − 76 =
  4. 4.523 − 489 =
  5. 5.316 − 290 =
  6. 6.62 − 47 =
  7. 7.57 − 26 =
  8. 8.1027 − 981 =
  9. 9.52 − 43 =
  10. 10.221 − 197 =
  11. 11.78 − 34 =
  12. 12.1006 − 976 =
  13. 13.95 − 77 =
  14. 14.313 − 281 =
  15. 15.66 − 27 =
  16. 16.1012 − 990 =
  17. 17.1024 − 982 =
  18. 18.303 − 288 =
  19. 19.525 − 493 =
  20. 20.211 − 183 =
  21. 21.502 − 476 =
  22. 22.518 − 496 =
  23. 23.67 − 32 =
  24. 24.315 − 293 =
  25. 25.208 − 192 =
  26. 26.81 − 64 =
  27. 27.1024 − 978 =
  28. 28.97 − 60 =
  29. 29.94 − 58 =
  30. 30.516 − 498 =
  31. 31.1010 − 978 =
  32. 32.316 − 277 =
  33. 33.304 − 295 =
  34. 34.329 − 285 =
  35. 35.65 − 32 =
  36. 36.51 − 32 =
  37. 37.314 − 297 =
  38. 38.116 − 87 =
  39. 39.316 − 284 =
  40. 40.528 − 494 =

Answer key

  1. 51
  2. 28
  3. 30
  4. 34
  5. 26
  6. 15
  7. 31
  8. 46
  9. 9
  10. 24
  11. 44
  12. 30
  13. 18
  14. 32
  15. 39
  16. 22
  17. 42
  18. 15
  19. 32
  20. 28
  21. 26
  22. 22
  23. 35
  24. 22
  25. 16
  26. 17
  27. 46
  28. 37
  29. 36
  30. 18
  31. 32
  32. 39
  33. 9
  34. 44
  35. 33
  36. 19
  37. 17
  38. 29
  39. 32
  40. 34

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