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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 623 · 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. 1.316 − 277 =
  2. 2.77 − 37 =
  3. 3.63 − 43 =
  4. 4.101 − 65 =
  5. 5.81 − 56 =
  6. 6.507 − 483 =
  7. 7.113 − 79 =
  8. 8.128 − 94 =
  9. 9.214 − 191 =
  10. 10.212 − 187 =
  11. 11.72 − 27 =
  12. 12.88 − 62 =
  13. 13.52 − 43 =
  14. 14.1026 − 976 =
  15. 15.51 − 46 =
  16. 16.303 − 278 =
  17. 17.100 − 64 =
  18. 18.127 − 94 =
  19. 19.528 − 482 =
  20. 20.52 − 30 =
  21. 21.214 − 192 =
  22. 22.311 − 276 =
  23. 23.329 − 280 =
  24. 24.223 − 177 =
  25. 25.102 − 92 =
  26. 26.518 − 491 =
  27. 27.63 − 39 =
  28. 28.511 − 486 =
  29. 29.310 − 287 =
  30. 30.523 − 476 =
  31. 31.80 − 30 =
  32. 32.61 − 43 =
  33. 33.95 − 63 =
  34. 34.505 − 497 =
  35. 35.82 − 78 =
  36. 36.323 − 287 =
  37. 37.1025 − 993 =
  38. 38.55 − 31 =
  39. 39.95 − 74 =
  40. 40.105 − 68 =

Answer key

  1. 39
  2. 40
  3. 20
  4. 36
  5. 25
  6. 24
  7. 34
  8. 34
  9. 23
  10. 25
  11. 45
  12. 26
  13. 9
  14. 50
  15. 5
  16. 25
  17. 36
  18. 33
  19. 46
  20. 22
  21. 22
  22. 35
  23. 49
  24. 46
  25. 10
  26. 27
  27. 24
  28. 25
  29. 23
  30. 47
  31. 50
  32. 18
  33. 32
  34. 8
  35. 4
  36. 36
  37. 32
  38. 24
  39. 21
  40. 37

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