← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 539 · 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 × 9 =
  2. 2.12 × 29 =
  3. 3.9 × 49 =
  4. 4.3 × 49 =
  5. 5.6 × 19 =
  6. 6.9 × 9 =
  7. 7.12 × 49 =
  8. 8.35 × 99 =
  9. 9.25 × 98 =
  10. 10.36 × 99 =
  11. 11.4 × 9 =
  12. 12.6 × 29 =
  13. 13.3 × 29 =
  14. 14.14 × 9 =
  15. 15.9 × 29 =
  16. 16.5 × 19 =
  17. 17.13 × 29 =
  18. 18.11 × 19 =
  19. 19.8 × 19 =
  20. 20.4 × 29 =
  21. 21.5 × 29 =
  22. 22.10 × 9 =
  23. 23.8 × 9 =
  24. 24.6 × 49 =
  25. 25.8 × 9 =
  26. 26.8 × 99 =
  27. 27.9 × 9 =
  28. 28.7 × 99 =
  29. 29.12 × 99 =
  30. 30.14 × 9 =
  31. 31.14 × 9 =
  32. 32.9 × 19 =
  33. 33.6 × 29 =
  34. 34.11 × 49 =
  35. 35.15 × 49 =
  36. 36.24 × 99 =
  37. 37.14 × 19 =
  38. 38.6 × 19 =
  39. 39.4 × 9 =
  40. 40.31 × 98 =

Answer key

  1. 99
  2. 348
  3. 441
  4. 147
  5. 114
  6. 81
  7. 588
  8. 3465
  9. 2450
  10. 3564
  11. 36
  12. 174
  13. 87
  14. 126
  15. 261
  16. 95
  17. 377
  18. 209
  19. 152
  20. 116
  21. 145
  22. 90
  23. 72
  24. 294
  25. 72
  26. 792
  27. 81
  28. 693
  29. 1188
  30. 126
  31. 126
  32. 171
  33. 174
  34. 539
  35. 735
  36. 2376
  37. 266
  38. 114
  39. 36
  40. 3038

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