← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 231 · 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. 1.3 × 9 =
  2. 2.8 × 9 =
  3. 3.5 × 99 =
  4. 4.38 × 99 =
  5. 5.40 × 98 =
  6. 6.8 × 9 =
  7. 7.13 × 49 =
  8. 8.15 × 19 =
  9. 9.28 × 98 =
  10. 10.17 × 99 =
  11. 11.6 × 99 =
  12. 12.9 × 49 =
  13. 13.13 × 29 =
  14. 14.21 × 98 =
  15. 15.4 × 19 =
  16. 16.6 × 19 =
  17. 17.4 × 9 =
  18. 18.9 × 98 =
  19. 19.4 × 9 =
  20. 20.3 × 49 =
  21. 21.14 × 19 =
  22. 22.37 × 99 =
  23. 23.6 × 19 =
  24. 24.14 × 49 =
  25. 25.25 × 98 =
  26. 26.8 × 98 =
  27. 27.3 × 49 =
  28. 28.39 × 99 =
  29. 29.9 × 9 =
  30. 30.7 × 49 =
  31. 31.4 × 49 =
  32. 32.7 × 29 =
  33. 33.8 × 98 =
  34. 34.7 × 49 =
  35. 35.12 × 49 =
  36. 36.7 × 29 =
  37. 37.11 × 99 =
  38. 38.38 × 99 =
  39. 39.11 × 49 =
  40. 40.21 × 99 =

Answer key

  1. 27
  2. 72
  3. 495
  4. 3762
  5. 3920
  6. 72
  7. 637
  8. 285
  9. 2744
  10. 1683
  11. 594
  12. 441
  13. 377
  14. 2058
  15. 76
  16. 114
  17. 36
  18. 882
  19. 36
  20. 147
  21. 266
  22. 3663
  23. 114
  24. 686
  25. 2450
  26. 784
  27. 147
  28. 3861
  29. 81
  30. 343
  31. 196
  32. 203
  33. 784
  34. 343
  35. 588
  36. 203
  37. 1089
  38. 3762
  39. 539
  40. 2079

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