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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 295 · 40 questions
TalentJR

How it works (Round and adjust): Round up: 49 is 50 − 1, 98 is 100 − 2. Multiply by the round number. Take away the number times the bit you added.

NameDateTime takenScore ___ / 40
  1. 1.14 × 19 =
  2. 2.14 × 9 =
  3. 3.8 × 19 =
  4. 4.10 × 9 =
  5. 5.16 × 99 =
  6. 6.15 × 49 =
  7. 7.14 × 9 =
  8. 8.6 × 29 =
  9. 9.3 × 49 =
  10. 10.22 × 99 =
  11. 11.14 × 29 =
  12. 12.7 × 49 =
  13. 13.3 × 9 =
  14. 14.6 × 49 =
  15. 15.13 × 9 =
  16. 16.8 × 99 =
  17. 17.3 × 29 =
  18. 18.22 × 99 =
  19. 19.8 × 9 =
  20. 20.11 × 9 =
  21. 21.14 × 29 =
  22. 22.5 × 29 =
  23. 23.39 × 99 =
  24. 24.12 × 29 =
  25. 25.14 × 99 =
  26. 26.15 × 29 =
  27. 27.11 × 19 =
  28. 28.6 × 49 =
  29. 29.3 × 49 =
  30. 30.10 × 98 =
  31. 31.3 × 19 =
  32. 32.4 × 19 =
  33. 33.26 × 99 =
  34. 34.7 × 19 =
  35. 35.5 × 99 =
  36. 36.11 × 49 =
  37. 37.9 × 19 =
  38. 38.3 × 49 =
  39. 39.9 × 49 =
  40. 40.31 × 99 =

Answer key

  1. 266
  2. 126
  3. 152
  4. 90
  5. 1584
  6. 735
  7. 126
  8. 174
  9. 147
  10. 2178
  11. 406
  12. 343
  13. 27
  14. 294
  15. 117
  16. 792
  17. 87
  18. 2178
  19. 72
  20. 99
  21. 406
  22. 145
  23. 3861
  24. 348
  25. 1386
  26. 435
  27. 209
  28. 294
  29. 147
  30. 980
  31. 57
  32. 76
  33. 2574
  34. 133
  35. 495
  36. 539
  37. 171
  38. 147
  39. 441
  40. 3069

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