← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 404 · 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 × 9 =
  2. 2.10 × 19 =
  3. 3.3 × 9 =
  4. 4.21 × 98 =
  5. 5.5 × 49 =
  6. 6.6 × 29 =
  7. 7.15 × 19 =
  8. 8.5 × 9 =
  9. 9.6 × 29 =
  10. 10.14 × 49 =
  11. 11.9 × 49 =
  12. 12.4 × 49 =
  13. 13.7 × 9 =
  14. 14.10 × 9 =
  15. 15.14 × 9 =
  16. 16.39 × 98 =
  17. 17.10 × 9 =
  18. 18.9 × 9 =
  19. 19.28 × 98 =
  20. 20.14 × 99 =
  21. 21.14 × 29 =
  22. 22.6 × 29 =
  23. 23.5 × 98 =
  24. 24.15 × 49 =
  25. 25.20 × 98 =
  26. 26.6 × 98 =
  27. 27.9 × 49 =
  28. 28.29 × 98 =
  29. 29.5 × 9 =
  30. 30.6 × 19 =
  31. 31.9 × 9 =
  32. 32.38 × 98 =
  33. 33.17 × 98 =
  34. 34.12 × 19 =
  35. 35.5 × 9 =
  36. 36.14 × 9 =
  37. 37.14 × 29 =
  38. 38.4 × 98 =
  39. 39.24 × 99 =
  40. 40.10 × 19 =

Answer key

  1. 81
  2. 190
  3. 27
  4. 2058
  5. 245
  6. 174
  7. 285
  8. 45
  9. 174
  10. 686
  11. 441
  12. 196
  13. 63
  14. 90
  15. 126
  16. 3822
  17. 90
  18. 81
  19. 2744
  20. 1386
  21. 406
  22. 174
  23. 490
  24. 735
  25. 1960
  26. 588
  27. 441
  28. 2842
  29. 45
  30. 114
  31. 81
  32. 3724
  33. 1666
  34. 228
  35. 45
  36. 126
  37. 406
  38. 392
  39. 2376
  40. 190

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