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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 166 · 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. 1.35 × 98 =
  2. 2.14 × 19 =
  3. 3.24 × 98 =
  4. 4.8 × 49 =
  5. 5.3 × 49 =
  6. 6.8 × 9 =
  7. 7.12 × 9 =
  8. 8.11 × 9 =
  9. 9.11 × 98 =
  10. 10.4 × 29 =
  11. 11.4 × 49 =
  12. 12.6 × 9 =
  13. 13.10 × 19 =
  14. 14.7 × 19 =
  15. 15.10 × 29 =
  16. 16.3 × 29 =
  17. 17.30 × 99 =
  18. 18.15 × 49 =
  19. 19.4 × 98 =
  20. 20.6 × 19 =
  21. 21.5 × 29 =
  22. 22.10 × 9 =
  23. 23.14 × 99 =
  24. 24.13 × 99 =
  25. 25.7 × 9 =
  26. 26.21 × 99 =
  27. 27.7 × 99 =
  28. 28.13 × 29 =
  29. 29.12 × 99 =
  30. 30.15 × 29 =
  31. 31.4 × 19 =
  32. 32.9 × 49 =
  33. 33.6 × 49 =
  34. 34.11 × 98 =
  35. 35.13 × 19 =
  36. 36.12 × 9 =
  37. 37.8 × 9 =
  38. 38.4 × 19 =
  39. 39.3 × 19 =
  40. 40.6 × 99 =

Answer key

  1. 3430
  2. 266
  3. 2352
  4. 392
  5. 147
  6. 72
  7. 108
  8. 99
  9. 1078
  10. 116
  11. 196
  12. 54
  13. 190
  14. 133
  15. 290
  16. 87
  17. 2970
  18. 735
  19. 392
  20. 114
  21. 145
  22. 90
  23. 1386
  24. 1287
  25. 63
  26. 2079
  27. 693
  28. 377
  29. 1188
  30. 435
  31. 76
  32. 441
  33. 294
  34. 1078
  35. 247
  36. 108
  37. 72
  38. 76
  39. 57
  40. 594

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