← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 49 · 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. 1.9 × 19 =
  2. 2.12 × 19 =
  3. 3.4 × 19 =
  4. 4.5 × 49 =
  5. 5.10 × 49 =
  6. 6.11 × 49 =
  7. 7.10 × 49 =
  8. 8.9 × 99 =
  9. 9.6 × 9 =
  10. 10.6 × 49 =
  11. 11.3 × 49 =
  12. 12.6 × 49 =
  13. 13.14 × 99 =
  14. 14.3 × 19 =
  15. 15.10 × 98 =
  16. 16.38 × 99 =
  17. 17.5 × 98 =
  18. 18.37 × 98 =
  19. 19.14 × 29 =
  20. 20.21 × 99 =
  21. 21.15 × 29 =
  22. 22.9 × 19 =
  23. 23.11 × 98 =
  24. 24.16 × 98 =
  25. 25.22 × 99 =
  26. 26.19 × 99 =
  27. 27.7 × 19 =
  28. 28.11 × 98 =
  29. 29.13 × 29 =
  30. 30.4 × 99 =
  31. 31.33 × 98 =
  32. 32.13 × 49 =
  33. 33.18 × 98 =
  34. 34.14 × 29 =
  35. 35.11 × 9 =
  36. 36.13 × 98 =
  37. 37.19 × 98 =
  38. 38.22 × 99 =
  39. 39.11 × 99 =
  40. 40.14 × 29 =

Answer key

  1. 171
  2. 228
  3. 76
  4. 245
  5. 490
  6. 539
  7. 490
  8. 891
  9. 54
  10. 294
  11. 147
  12. 294
  13. 1386
  14. 57
  15. 980
  16. 3762
  17. 490
  18. 3626
  19. 406
  20. 2079
  21. 435
  22. 171
  23. 1078
  24. 1568
  25. 2178
  26. 1881
  27. 133
  28. 1078
  29. 377
  30. 396
  31. 3234
  32. 637
  33. 1764
  34. 406
  35. 99
  36. 1274
  37. 1862
  38. 2178
  39. 1089
  40. 406

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