← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 531 · 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 × 9 =
  2. 2.8 × 29 =
  3. 3.4 × 19 =
  4. 4.4 × 9 =
  5. 5.8 × 19 =
  6. 6.4 × 29 =
  7. 7.6 × 49 =
  8. 8.8 × 29 =
  9. 9.5 × 19 =
  10. 10.39 × 99 =
  11. 11.7 × 98 =
  12. 12.6 × 49 =
  13. 13.7 × 19 =
  14. 14.15 × 29 =
  15. 15.22 × 99 =
  16. 16.8 × 49 =
  17. 17.11 × 49 =
  18. 18.24 × 98 =
  19. 19.14 × 29 =
  20. 20.13 × 9 =
  21. 21.7 × 49 =
  22. 22.3 × 19 =
  23. 23.11 × 19 =
  24. 24.8 × 19 =
  25. 25.9 × 9 =
  26. 26.22 × 99 =
  27. 27.7 × 29 =
  28. 28.3 × 29 =
  29. 29.26 × 98 =
  30. 30.21 × 99 =
  31. 31.19 × 98 =
  32. 32.9 × 19 =
  33. 33.13 × 19 =
  34. 34.19 × 98 =
  35. 35.24 × 99 =
  36. 36.38 × 98 =
  37. 37.13 × 9 =
  38. 38.8 × 9 =
  39. 39.7 × 49 =
  40. 40.8 × 99 =

Answer key

  1. 81
  2. 232
  3. 76
  4. 36
  5. 152
  6. 116
  7. 294
  8. 232
  9. 95
  10. 3861
  11. 686
  12. 294
  13. 133
  14. 435
  15. 2178
  16. 392
  17. 539
  18. 2352
  19. 406
  20. 117
  21. 343
  22. 57
  23. 209
  24. 152
  25. 81
  26. 2178
  27. 203
  28. 87
  29. 2548
  30. 2079
  31. 1862
  32. 171
  33. 247
  34. 1862
  35. 2376
  36. 3724
  37. 117
  38. 72
  39. 343
  40. 792

Free tables & multiplication lessons, practice and worksheets at talentjr.in/multiplication-tables