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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 538 · 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. 1.13 × 29 =
  2. 2.13 × 29 =
  3. 3.6 × 49 =
  4. 4.12 × 49 =
  5. 5.18 × 99 =
  6. 6.3 × 9 =
  7. 7.5 × 19 =
  8. 8.7 × 99 =
  9. 9.13 × 19 =
  10. 10.13 × 29 =
  11. 11.7 × 9 =
  12. 12.14 × 29 =
  13. 13.11 × 99 =
  14. 14.3 × 49 =
  15. 15.14 × 49 =
  16. 16.11 × 29 =
  17. 17.11 × 29 =
  18. 18.26 × 99 =
  19. 19.4 × 9 =
  20. 20.8 × 19 =
  21. 21.24 × 98 =
  22. 22.18 × 99 =
  23. 23.5 × 29 =
  24. 24.10 × 29 =
  25. 25.5 × 19 =
  26. 26.9 × 49 =
  27. 27.6 × 9 =
  28. 28.4 × 49 =
  29. 29.13 × 29 =
  30. 30.4 × 19 =
  31. 31.13 × 19 =
  32. 32.18 × 98 =
  33. 33.4 × 29 =
  34. 34.7 × 99 =
  35. 35.15 × 49 =
  36. 36.5 × 99 =
  37. 37.9 × 9 =
  38. 38.6 × 19 =
  39. 39.13 × 29 =
  40. 40.9 × 19 =

Answer key

  1. 377
  2. 377
  3. 294
  4. 588
  5. 1782
  6. 27
  7. 95
  8. 693
  9. 247
  10. 377
  11. 63
  12. 406
  13. 1089
  14. 147
  15. 686
  16. 319
  17. 319
  18. 2574
  19. 36
  20. 152
  21. 2352
  22. 1782
  23. 145
  24. 290
  25. 95
  26. 441
  27. 54
  28. 196
  29. 377
  30. 76
  31. 247
  32. 1764
  33. 116
  34. 693
  35. 735
  36. 495
  37. 81
  38. 114
  39. 377
  40. 171

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