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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 706 · 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. 1.34 × 99 =
  2. 2.4 × 9 =
  3. 3.12 × 29 =
  4. 4.31 × 99 =
  5. 5.40 × 99 =
  6. 6.8 × 9 =
  7. 7.3 × 19 =
  8. 8.14 × 9 =
  9. 9.13 × 29 =
  10. 10.3 × 49 =
  11. 11.13 × 9 =
  12. 12.14 × 98 =
  13. 13.7 × 19 =
  14. 14.10 × 29 =
  15. 15.24 × 98 =
  16. 16.13 × 9 =
  17. 17.13 × 29 =
  18. 18.34 × 99 =
  19. 19.4 × 19 =
  20. 20.12 × 49 =
  21. 21.12 × 49 =
  22. 22.6 × 9 =
  23. 23.14 × 9 =
  24. 24.3 × 49 =
  25. 25.10 × 19 =
  26. 26.24 × 98 =
  27. 27.10 × 19 =
  28. 28.29 × 99 =
  29. 29.4 × 19 =
  30. 30.15 × 9 =
  31. 31.3 × 9 =
  32. 32.3 × 19 =
  33. 33.3 × 98 =
  34. 34.32 × 99 =
  35. 35.5 × 29 =
  36. 36.25 × 98 =
  37. 37.27 × 98 =
  38. 38.13 × 49 =
  39. 39.13 × 98 =
  40. 40.7 × 9 =

Answer key

  1. 3366
  2. 36
  3. 348
  4. 3069
  5. 3960
  6. 72
  7. 57
  8. 126
  9. 377
  10. 147
  11. 117
  12. 1372
  13. 133
  14. 290
  15. 2352
  16. 117
  17. 377
  18. 3366
  19. 76
  20. 588
  21. 588
  22. 54
  23. 126
  24. 147
  25. 190
  26. 2352
  27. 190
  28. 2871
  29. 76
  30. 135
  31. 27
  32. 57
  33. 294
  34. 3168
  35. 145
  36. 2450
  37. 2646
  38. 637
  39. 1274
  40. 63

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