← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 911 · 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. 1.11 × 49 =
  2. 2.12 × 19 =
  3. 3.10 × 19 =
  4. 4.31 × 99 =
  5. 5.35 × 98 =
  6. 6.7 × 49 =
  7. 7.14 × 9 =
  8. 8.8 × 9 =
  9. 9.14 × 29 =
  10. 10.7 × 19 =
  11. 11.12 × 99 =
  12. 12.9 × 9 =
  13. 13.28 × 98 =
  14. 14.5 × 9 =
  15. 15.4 × 9 =
  16. 16.15 × 19 =
  17. 17.12 × 9 =
  18. 18.13 × 98 =
  19. 19.9 × 49 =
  20. 20.14 × 49 =
  21. 21.10 × 9 =
  22. 22.30 × 98 =
  23. 23.7 × 19 =
  24. 24.9 × 19 =
  25. 25.10 × 9 =
  26. 26.7 × 98 =
  27. 27.17 × 98 =
  28. 28.5 × 9 =
  29. 29.6 × 98 =
  30. 30.7 × 49 =
  31. 31.5 × 9 =
  32. 32.10 × 49 =
  33. 33.10 × 19 =
  34. 34.24 × 98 =
  35. 35.7 × 49 =
  36. 36.15 × 49 =
  37. 37.13 × 19 =
  38. 38.8 × 19 =
  39. 39.9 × 29 =
  40. 40.7 × 19 =

Answer key

  1. 539
  2. 228
  3. 190
  4. 3069
  5. 3430
  6. 343
  7. 126
  8. 72
  9. 406
  10. 133
  11. 1188
  12. 81
  13. 2744
  14. 45
  15. 36
  16. 285
  17. 108
  18. 1274
  19. 441
  20. 686
  21. 90
  22. 2940
  23. 133
  24. 171
  25. 90
  26. 686
  27. 1666
  28. 45
  29. 588
  30. 343
  31. 45
  32. 490
  33. 190
  34. 2352
  35. 343
  36. 735
  37. 247
  38. 152
  39. 261
  40. 133

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