← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 492 · 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. 1.21 × 98 =
  2. 2.3 × 19 =
  3. 3.10 × 19 =
  4. 4.9 × 9 =
  5. 5.11 × 98 =
  6. 6.21 × 98 =
  7. 7.8 × 29 =
  8. 8.3 × 9 =
  9. 9.9 × 99 =
  10. 10.6 × 19 =
  11. 11.5 × 9 =
  12. 12.3 × 19 =
  13. 13.13 × 9 =
  14. 14.9 × 99 =
  15. 15.5 × 29 =
  16. 16.12 × 19 =
  17. 17.5 × 19 =
  18. 18.10 × 9 =
  19. 19.38 × 99 =
  20. 20.27 × 98 =
  21. 21.33 × 99 =
  22. 22.13 × 19 =
  23. 23.12 × 99 =
  24. 24.15 × 9 =
  25. 25.12 × 29 =
  26. 26.3 × 19 =
  27. 27.10 × 49 =
  28. 28.10 × 19 =
  29. 29.39 × 98 =
  30. 30.3 × 9 =
  31. 31.9 × 9 =
  32. 32.3 × 29 =
  33. 33.5 × 98 =
  34. 34.11 × 29 =
  35. 35.4 × 49 =
  36. 36.8 × 19 =
  37. 37.3 × 49 =
  38. 38.14 × 99 =
  39. 39.27 × 98 =
  40. 40.12 × 19 =

Answer key

  1. 2058
  2. 57
  3. 190
  4. 81
  5. 1078
  6. 2058
  7. 232
  8. 27
  9. 891
  10. 114
  11. 45
  12. 57
  13. 117
  14. 891
  15. 145
  16. 228
  17. 95
  18. 90
  19. 3762
  20. 2646
  21. 3267
  22. 247
  23. 1188
  24. 135
  25. 348
  26. 57
  27. 490
  28. 190
  29. 3822
  30. 27
  31. 81
  32. 87
  33. 490
  34. 319
  35. 196
  36. 152
  37. 147
  38. 1386
  39. 2646
  40. 228

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