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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 696 · 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. 1.211 − 190 =
  2. 2.84 − 56 =
  3. 3.113 − 80 =
  4. 4.74 − 45 =
  5. 5.112 − 86 =
  6. 6.330 − 297 =
  7. 7.1025 − 991 =
  8. 8.506 − 490 =
  9. 9.202 − 196 =
  10. 10.70 − 35 =
  11. 11.1005 − 975 =
  12. 12.100 − 69 =
  13. 13.88 − 65 =
  14. 14.523 − 489 =
  15. 15.306 − 289 =
  16. 16.524 − 497 =
  17. 17.504 − 493 =
  18. 18.211 − 196 =
  19. 19.208 − 188 =
  20. 20.118 − 86 =
  21. 21.527 − 477 =
  22. 22.67 − 46 =
  23. 23.303 − 281 =
  24. 24.202 − 176 =
  25. 25.99 − 74 =
  26. 26.1014 − 989 =
  27. 27.303 − 280 =
  28. 28.51 − 40 =
  29. 29.509 − 484 =
  30. 30.1026 − 998 =
  31. 31.516 − 475 =
  32. 32.224 − 188 =
  33. 33.89 − 70 =
  34. 34.206 − 176 =
  35. 35.1009 − 991 =
  36. 36.108 − 77 =
  37. 37.75 − 30 =
  38. 38.508 − 490 =
  39. 39.92 − 63 =
  40. 40.69 − 39 =

Answer key

  1. 21
  2. 28
  3. 33
  4. 29
  5. 26
  6. 33
  7. 34
  8. 16
  9. 6
  10. 35
  11. 30
  12. 31
  13. 23
  14. 34
  15. 17
  16. 27
  17. 11
  18. 15
  19. 20
  20. 32
  21. 50
  22. 21
  23. 22
  24. 26
  25. 25
  26. 25
  27. 23
  28. 11
  29. 25
  30. 28
  31. 41
  32. 36
  33. 19
  34. 30
  35. 18
  36. 31
  37. 45
  38. 18
  39. 29
  40. 30

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