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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 422 · 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 × 29 =
  2. 2.7 × 29 =
  3. 3.8 × 99 =
  4. 4.14 × 29 =
  5. 5.13 × 98 =
  6. 6.14 × 29 =
  7. 7.4 × 9 =
  8. 8.8 × 98 =
  9. 9.4 × 19 =
  10. 10.15 × 29 =
  11. 11.3 × 29 =
  12. 12.12 × 49 =
  13. 13.26 × 99 =
  14. 14.40 × 99 =
  15. 15.10 × 49 =
  16. 16.11 × 99 =
  17. 17.4 × 19 =
  18. 18.7 × 19 =
  19. 19.6 × 9 =
  20. 20.24 × 99 =
  21. 21.12 × 29 =
  22. 22.25 × 98 =
  23. 23.14 × 19 =
  24. 24.23 × 99 =
  25. 25.27 × 98 =
  26. 26.5 × 9 =
  27. 27.11 × 9 =
  28. 28.6 × 9 =
  29. 29.4 × 19 =
  30. 30.3 × 29 =
  31. 31.9 × 19 =
  32. 32.35 × 98 =
  33. 33.14 × 9 =
  34. 34.10 × 9 =
  35. 35.39 × 99 =
  36. 36.7 × 99 =
  37. 37.21 × 98 =
  38. 38.10 × 29 =
  39. 39.5 × 99 =
  40. 40.6 × 19 =

Answer key

  1. 406
  2. 203
  3. 792
  4. 406
  5. 1274
  6. 406
  7. 36
  8. 784
  9. 76
  10. 435
  11. 87
  12. 588
  13. 2574
  14. 3960
  15. 490
  16. 1089
  17. 76
  18. 133
  19. 54
  20. 2376
  21. 348
  22. 2450
  23. 266
  24. 2277
  25. 2646
  26. 45
  27. 99
  28. 54
  29. 76
  30. 87
  31. 171
  32. 3430
  33. 126
  34. 90
  35. 3861
  36. 693
  37. 2058
  38. 290
  39. 495
  40. 114

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