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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 761 · 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. 1.223 − 195 =
  2. 2.1024 − 983 =
  3. 3.205 − 198 =
  4. 4.58 − 33 =
  5. 5.528 − 494 =
  6. 6.123 − 92 =
  7. 7.72 − 33 =
  8. 8.1019 − 996 =
  9. 9.115 − 92 =
  10. 10.103 − 69 =
  11. 11.71 − 47 =
  12. 12.227 − 194 =
  13. 13.317 − 285 =
  14. 14.525 − 480 =
  15. 15.54 − 27 =
  16. 16.107 − 60 =
  17. 17.124 − 95 =
  18. 18.63 − 25 =
  19. 19.112 − 87 =
  20. 20.518 − 486 =
  21. 21.86 − 75 =
  22. 22.62 − 46 =
  23. 23.105 − 78 =
  24. 24.105 − 71 =
  25. 25.73 − 39 =
  26. 26.103 − 77 =
  27. 27.104 − 69 =
  28. 28.67 − 48 =
  29. 29.506 − 485 =
  30. 30.520 − 488 =
  31. 31.1027 − 993 =
  32. 32.301 − 275 =
  33. 33.71 − 26 =
  34. 34.507 − 486 =
  35. 35.99 − 57 =
  36. 36.98 − 60 =
  37. 37.118 − 94 =
  38. 38.1022 − 977 =
  39. 39.214 − 196 =
  40. 40.109 − 98 =

Answer key

  1. 28
  2. 41
  3. 7
  4. 25
  5. 34
  6. 31
  7. 39
  8. 23
  9. 23
  10. 34
  11. 24
  12. 33
  13. 32
  14. 45
  15. 27
  16. 47
  17. 29
  18. 38
  19. 25
  20. 32
  21. 11
  22. 16
  23. 27
  24. 34
  25. 34
  26. 26
  27. 35
  28. 19
  29. 21
  30. 32
  31. 34
  32. 26
  33. 45
  34. 21
  35. 42
  36. 38
  37. 24
  38. 45
  39. 18
  40. 11

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