← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 754 · 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. 1.7 × 99 =
  2. 2.12 × 29 =
  3. 3.8 × 49 =
  4. 4.15 × 9 =
  5. 5.4 × 19 =
  6. 6.14 × 29 =
  7. 7.37 × 98 =
  8. 8.11 × 19 =
  9. 9.6 × 98 =
  10. 10.6 × 49 =
  11. 11.4 × 98 =
  12. 12.7 × 49 =
  13. 13.17 × 99 =
  14. 14.10 × 98 =
  15. 15.7 × 19 =
  16. 16.15 × 49 =
  17. 17.5 × 29 =
  18. 18.3 × 9 =
  19. 19.4 × 9 =
  20. 20.15 × 9 =
  21. 21.3 × 29 =
  22. 22.7 × 19 =
  23. 23.9 × 9 =
  24. 24.12 × 29 =
  25. 25.15 × 9 =
  26. 26.11 × 19 =
  27. 27.12 × 9 =
  28. 28.9 × 9 =
  29. 29.38 × 98 =
  30. 30.19 × 98 =
  31. 31.8 × 9 =
  32. 32.12 × 49 =
  33. 33.7 × 49 =
  34. 34.3 × 98 =
  35. 35.5 × 29 =
  36. 36.13 × 49 =
  37. 37.8 × 49 =
  38. 38.33 × 98 =
  39. 39.36 × 99 =
  40. 40.3 × 19 =

Answer key

  1. 693
  2. 348
  3. 392
  4. 135
  5. 76
  6. 406
  7. 3626
  8. 209
  9. 588
  10. 294
  11. 392
  12. 343
  13. 1683
  14. 980
  15. 133
  16. 735
  17. 145
  18. 27
  19. 36
  20. 135
  21. 87
  22. 133
  23. 81
  24. 348
  25. 135
  26. 209
  27. 108
  28. 81
  29. 3724
  30. 1862
  31. 72
  32. 588
  33. 343
  34. 294
  35. 145
  36. 637
  37. 392
  38. 3234
  39. 3564
  40. 57

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