← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 446 · 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. 1.36 × 98 =
  2. 2.8 × 29 =
  3. 3.10 × 49 =
  4. 4.3 × 9 =
  5. 5.10 × 9 =
  6. 6.4 × 9 =
  7. 7.11 × 98 =
  8. 8.28 × 98 =
  9. 9.40 × 99 =
  10. 10.3 × 49 =
  11. 11.9 × 19 =
  12. 12.7 × 49 =
  13. 13.11 × 49 =
  14. 14.37 × 98 =
  15. 15.14 × 49 =
  16. 16.5 × 19 =
  17. 17.35 × 99 =
  18. 18.15 × 9 =
  19. 19.9 × 99 =
  20. 20.3 × 9 =
  21. 21.14 × 9 =
  22. 22.6 × 9 =
  23. 23.15 × 9 =
  24. 24.3 × 9 =
  25. 25.14 × 9 =
  26. 26.9 × 99 =
  27. 27.14 × 99 =
  28. 28.4 × 98 =
  29. 29.3 × 9 =
  30. 30.4 × 19 =
  31. 31.32 × 98 =
  32. 32.20 × 98 =
  33. 33.7 × 9 =
  34. 34.9 × 19 =
  35. 35.11 × 29 =
  36. 36.4 × 49 =
  37. 37.4 × 49 =
  38. 38.14 × 9 =
  39. 39.12 × 49 =
  40. 40.36 × 99 =

Answer key

  1. 3528
  2. 232
  3. 490
  4. 27
  5. 90
  6. 36
  7. 1078
  8. 2744
  9. 3960
  10. 147
  11. 171
  12. 343
  13. 539
  14. 3626
  15. 686
  16. 95
  17. 3465
  18. 135
  19. 891
  20. 27
  21. 126
  22. 54
  23. 135
  24. 27
  25. 126
  26. 891
  27. 1386
  28. 392
  29. 27
  30. 76
  31. 3136
  32. 1960
  33. 63
  34. 171
  35. 319
  36. 196
  37. 196
  38. 126
  39. 588
  40. 3564

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