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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 986 · 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. 1.514 − 479 =
  2. 2.79 − 26 =
  3. 3.57 − 35 =
  4. 4.214 − 194 =
  5. 5.101 − 65 =
  6. 6.301 − 294 =
  7. 7.103 − 93 =
  8. 8.86 − 65 =
  9. 9.102 − 95 =
  10. 10.529 − 487 =
  11. 11.211 − 191 =
  12. 12.129 − 92 =
  13. 13.115 − 79 =
  14. 14.71 − 39 =
  15. 15.1019 − 997 =
  16. 16.74 − 46 =
  17. 17.1003 − 993 =
  18. 18.102 − 91 =
  19. 19.205 − 194 =
  20. 20.510 − 493 =
  21. 21.81 − 72 =
  22. 22.122 − 98 =
  23. 23.502 − 497 =
  24. 24.520 − 489 =
  25. 25.1015 − 992 =
  26. 26.66 − 44 =
  27. 27.89 − 76 =
  28. 28.1010 − 983 =
  29. 29.60 − 31 =
  30. 30.122 − 97 =
  31. 31.68 − 29 =
  32. 32.530 − 486 =
  33. 33.53 − 30 =
  34. 34.57 − 41 =
  35. 35.207 − 196 =
  36. 36.87 − 65 =
  37. 37.54 − 48 =
  38. 38.1007 − 983 =
  39. 39.311 − 294 =
  40. 40.205 − 175 =

Answer key

  1. 35
  2. 53
  3. 22
  4. 20
  5. 36
  6. 7
  7. 10
  8. 21
  9. 7
  10. 42
  11. 20
  12. 37
  13. 36
  14. 32
  15. 22
  16. 28
  17. 10
  18. 11
  19. 11
  20. 17
  21. 9
  22. 24
  23. 5
  24. 31
  25. 23
  26. 22
  27. 13
  28. 27
  29. 29
  30. 25
  31. 39
  32. 44
  33. 23
  34. 16
  35. 11
  36. 22
  37. 6
  38. 24
  39. 17
  40. 30

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