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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 723 · 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. 1.6 × 99 =
  2. 2.7 × 19 =
  3. 3.35 × 98 =
  4. 4.17 × 99 =
  5. 5.18 × 98 =
  6. 6.11 × 19 =
  7. 7.18 × 99 =
  8. 8.4 × 19 =
  9. 9.19 × 98 =
  10. 10.22 × 98 =
  11. 11.3 × 49 =
  12. 12.3 × 29 =
  13. 13.4 × 9 =
  14. 14.7 × 19 =
  15. 15.3 × 9 =
  16. 16.5 × 29 =
  17. 17.5 × 49 =
  18. 18.4 × 9 =
  19. 19.7 × 29 =
  20. 20.13 × 19 =
  21. 21.5 × 9 =
  22. 22.11 × 9 =
  23. 23.8 × 98 =
  24. 24.3 × 9 =
  25. 25.15 × 29 =
  26. 26.14 × 9 =
  27. 27.9 × 19 =
  28. 28.12 × 9 =
  29. 29.7 × 29 =
  30. 30.13 × 29 =
  31. 31.3 × 29 =
  32. 32.36 × 98 =
  33. 33.32 × 98 =
  34. 34.15 × 29 =
  35. 35.3 × 9 =
  36. 36.34 × 99 =
  37. 37.9 × 49 =
  38. 38.7 × 9 =
  39. 39.37 × 99 =
  40. 40.7 × 49 =

Answer key

  1. 594
  2. 133
  3. 3430
  4. 1683
  5. 1764
  6. 209
  7. 1782
  8. 76
  9. 1862
  10. 2156
  11. 147
  12. 87
  13. 36
  14. 133
  15. 27
  16. 145
  17. 245
  18. 36
  19. 203
  20. 247
  21. 45
  22. 99
  23. 784
  24. 27
  25. 435
  26. 126
  27. 171
  28. 108
  29. 203
  30. 377
  31. 87
  32. 3528
  33. 3136
  34. 435
  35. 27
  36. 3366
  37. 441
  38. 63
  39. 3663
  40. 343

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