← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 635 · 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. 1.8 × 9 =
  2. 2.32 × 98 =
  3. 3.4 × 9 =
  4. 4.36 × 98 =
  5. 5.10 × 19 =
  6. 6.9 × 19 =
  7. 7.3 × 29 =
  8. 8.3 × 49 =
  9. 9.26 × 99 =
  10. 10.5 × 9 =
  11. 11.8 × 29 =
  12. 12.3 × 49 =
  13. 13.33 × 99 =
  14. 14.12 × 49 =
  15. 15.4 × 19 =
  16. 16.5 × 9 =
  17. 17.17 × 99 =
  18. 18.11 × 29 =
  19. 19.14 × 19 =
  20. 20.37 × 98 =
  21. 21.3 × 19 =
  22. 22.8 × 19 =
  23. 23.15 × 9 =
  24. 24.18 × 98 =
  25. 25.15 × 19 =
  26. 26.11 × 9 =
  27. 27.4 × 9 =
  28. 28.11 × 19 =
  29. 29.15 × 19 =
  30. 30.13 × 29 =
  31. 31.11 × 9 =
  32. 32.19 × 99 =
  33. 33.20 × 98 =
  34. 34.3 × 19 =
  35. 35.11 × 19 =
  36. 36.12 × 19 =
  37. 37.25 × 98 =
  38. 38.11 × 29 =
  39. 39.14 × 98 =
  40. 40.25 × 98 =

Answer key

  1. 72
  2. 3136
  3. 36
  4. 3528
  5. 190
  6. 171
  7. 87
  8. 147
  9. 2574
  10. 45
  11. 232
  12. 147
  13. 3267
  14. 588
  15. 76
  16. 45
  17. 1683
  18. 319
  19. 266
  20. 3626
  21. 57
  22. 152
  23. 135
  24. 1764
  25. 285
  26. 99
  27. 36
  28. 209
  29. 285
  30. 377
  31. 99
  32. 1881
  33. 1960
  34. 57
  35. 209
  36. 228
  37. 2450
  38. 319
  39. 1372
  40. 2450

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