← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 150 · 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. 1.10 × 98 =
  2. 2.15 × 19 =
  3. 3.5 × 29 =
  4. 4.13 × 9 =
  5. 5.14 × 29 =
  6. 6.3 × 29 =
  7. 7.10 × 19 =
  8. 8.4 × 19 =
  9. 9.12 × 49 =
  10. 10.23 × 99 =
  11. 11.11 × 19 =
  12. 12.27 × 99 =
  13. 13.10 × 29 =
  14. 14.9 × 29 =
  15. 15.9 × 9 =
  16. 16.7 × 19 =
  17. 17.27 × 98 =
  18. 18.5 × 98 =
  19. 19.4 × 9 =
  20. 20.8 × 19 =
  21. 21.15 × 49 =
  22. 22.34 × 99 =
  23. 23.38 × 98 =
  24. 24.9 × 99 =
  25. 25.13 × 9 =
  26. 26.12 × 9 =
  27. 27.6 × 9 =
  28. 28.12 × 29 =
  29. 29.5 × 49 =
  30. 30.11 × 19 =
  31. 31.8 × 19 =
  32. 32.11 × 49 =
  33. 33.9 × 9 =
  34. 34.7 × 9 =
  35. 35.8 × 9 =
  36. 36.9 × 9 =
  37. 37.11 × 29 =
  38. 38.7 × 29 =
  39. 39.11 × 49 =
  40. 40.5 × 49 =

Answer key

  1. 980
  2. 285
  3. 145
  4. 117
  5. 406
  6. 87
  7. 190
  8. 76
  9. 588
  10. 2277
  11. 209
  12. 2673
  13. 290
  14. 261
  15. 81
  16. 133
  17. 2646
  18. 490
  19. 36
  20. 152
  21. 735
  22. 3366
  23. 3724
  24. 891
  25. 117
  26. 108
  27. 54
  28. 348
  29. 245
  30. 209
  31. 152
  32. 539
  33. 81
  34. 63
  35. 72
  36. 81
  37. 319
  38. 203
  39. 539
  40. 245

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