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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 83 · 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. 1.9 × 29 =
  2. 2.34 × 98 =
  3. 3.12 × 9 =
  4. 4.13 × 29 =
  5. 5.27 × 99 =
  6. 6.5 × 49 =
  7. 7.11 × 49 =
  8. 8.36 × 98 =
  9. 9.6 × 29 =
  10. 10.6 × 98 =
  11. 11.13 × 49 =
  12. 12.3 × 19 =
  13. 13.10 × 98 =
  14. 14.8 × 9 =
  15. 15.20 × 99 =
  16. 16.5 × 29 =
  17. 17.8 × 19 =
  18. 18.7 × 49 =
  19. 19.10 × 99 =
  20. 20.3 × 19 =
  21. 21.3 × 49 =
  22. 22.3 × 99 =
  23. 23.6 × 49 =
  24. 24.11 × 19 =
  25. 25.26 × 99 =
  26. 26.28 × 99 =
  27. 27.3 × 9 =
  28. 28.4 × 99 =
  29. 29.8 × 99 =
  30. 30.15 × 49 =
  31. 31.9 × 9 =
  32. 32.11 × 49 =
  33. 33.3 × 29 =
  34. 34.10 × 19 =
  35. 35.5 × 49 =
  36. 36.4 × 9 =
  37. 37.8 × 9 =
  38. 38.5 × 9 =
  39. 39.14 × 49 =
  40. 40.12 × 19 =

Answer key

  1. 261
  2. 3332
  3. 108
  4. 377
  5. 2673
  6. 245
  7. 539
  8. 3528
  9. 174
  10. 588
  11. 637
  12. 57
  13. 980
  14. 72
  15. 1980
  16. 145
  17. 152
  18. 343
  19. 990
  20. 57
  21. 147
  22. 297
  23. 294
  24. 209
  25. 2574
  26. 2772
  27. 27
  28. 396
  29. 792
  30. 735
  31. 81
  32. 539
  33. 87
  34. 190
  35. 245
  36. 36
  37. 72
  38. 45
  39. 686
  40. 228

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