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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 971 · 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. 1.313 − 280 =
  2. 2.73 − 39 =
  3. 3.206 − 197 =
  4. 4.520 − 492 =
  5. 5.76 − 44 =
  6. 6.1016 − 992 =
  7. 7.74 − 26 =
  8. 8.88 − 58 =
  9. 9.1017 − 998 =
  10. 10.119 − 77 =
  11. 11.85 − 68 =
  12. 12.85 − 72 =
  13. 13.130 − 75 =
  14. 14.1023 − 977 =
  15. 15.121 − 75 =
  16. 16.507 − 490 =
  17. 17.126 − 96 =
  18. 18.308 − 292 =
  19. 19.101 − 86 =
  20. 20.102 − 75 =
  21. 21.501 − 498 =
  22. 22.71 − 42 =
  23. 23.1011 − 983 =
  24. 24.113 − 98 =
  25. 25.1008 − 993 =
  26. 26.62 − 48 =
  27. 27.212 − 185 =
  28. 28.52 − 38 =
  29. 29.1013 − 986 =
  30. 30.1005 − 978 =
  31. 31.122 − 96 =
  32. 32.77 − 37 =
  33. 33.87 − 62 =
  34. 34.312 − 298 =
  35. 35.1015 − 981 =
  36. 36.211 − 192 =
  37. 37.225 − 182 =
  38. 38.516 − 487 =
  39. 39.124 − 87 =
  40. 40.504 − 495 =

Answer key

  1. 33
  2. 34
  3. 9
  4. 28
  5. 32
  6. 24
  7. 48
  8. 30
  9. 19
  10. 42
  11. 17
  12. 13
  13. 55
  14. 46
  15. 46
  16. 17
  17. 30
  18. 16
  19. 15
  20. 27
  21. 3
  22. 29
  23. 28
  24. 15
  25. 15
  26. 14
  27. 27
  28. 14
  29. 27
  30. 27
  31. 26
  32. 40
  33. 25
  34. 14
  35. 34
  36. 19
  37. 43
  38. 29
  39. 37
  40. 9

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