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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 261 · 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. 1.306 − 283 =
  2. 2.526 − 489 =
  3. 3.519 − 486 =
  4. 4.124 − 96 =
  5. 5.1014 − 981 =
  6. 6.56 − 31 =
  7. 7.71 − 48 =
  8. 8.208 − 176 =
  9. 9.60 − 34 =
  10. 10.311 − 295 =
  11. 11.1004 − 977 =
  12. 12.315 − 285 =
  13. 13.111 − 76 =
  14. 14.56 − 47 =
  15. 15.323 − 290 =
  16. 16.1024 − 992 =
  17. 17.523 − 479 =
  18. 18.219 − 186 =
  19. 19.1017 − 983 =
  20. 20.1010 − 993 =
  21. 21.513 − 480 =
  22. 22.63 − 43 =
  23. 23.213 − 184 =
  24. 24.1006 − 993 =
  25. 25.79 − 48 =
  26. 26.126 − 93 =
  27. 27.105 − 58 =
  28. 28.1029 − 981 =
  29. 29.100 − 70 =
  30. 30.517 − 479 =
  31. 31.80 − 32 =
  32. 32.312 − 279 =
  33. 33.505 − 488 =
  34. 34.69 − 32 =
  35. 35.107 − 95 =
  36. 36.207 − 195 =
  37. 37.83 − 76 =
  38. 38.515 − 485 =
  39. 39.106 − 98 =
  40. 40.528 − 496 =

Answer key

  1. 23
  2. 37
  3. 33
  4. 28
  5. 33
  6. 25
  7. 23
  8. 32
  9. 26
  10. 16
  11. 27
  12. 30
  13. 35
  14. 9
  15. 33
  16. 32
  17. 44
  18. 33
  19. 34
  20. 17
  21. 33
  22. 20
  23. 29
  24. 13
  25. 31
  26. 33
  27. 47
  28. 48
  29. 30
  30. 38
  31. 48
  32. 33
  33. 17
  34. 37
  35. 12
  36. 12
  37. 7
  38. 30
  39. 8
  40. 32

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