← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 526 · 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 × 99 =
  2. 2.25 × 98 =
  3. 3.5 × 19 =
  4. 4.14 × 99 =
  5. 5.3 × 19 =
  6. 6.10 × 9 =
  7. 7.25 × 99 =
  8. 8.10 × 99 =
  9. 9.5 × 29 =
  10. 10.9 × 29 =
  11. 11.3 × 9 =
  12. 12.7 × 19 =
  13. 13.14 × 19 =
  14. 14.3 × 99 =
  15. 15.11 × 98 =
  16. 16.10 × 29 =
  17. 17.15 × 49 =
  18. 18.26 × 99 =
  19. 19.3 × 29 =
  20. 20.4 × 19 =
  21. 21.12 × 49 =
  22. 22.10 × 9 =
  23. 23.17 × 99 =
  24. 24.15 × 9 =
  25. 25.5 × 49 =
  26. 26.28 × 98 =
  27. 27.12 × 9 =
  28. 28.12 × 9 =
  29. 29.3 × 49 =
  30. 30.6 × 29 =
  31. 31.6 × 9 =
  32. 32.11 × 9 =
  33. 33.4 × 9 =
  34. 34.10 × 49 =
  35. 35.11 × 49 =
  36. 36.4 × 9 =
  37. 37.39 × 99 =
  38. 38.12 × 19 =
  39. 39.22 × 99 =
  40. 40.5 × 9 =

Answer key

  1. 1089
  2. 2450
  3. 95
  4. 1386
  5. 57
  6. 90
  7. 2475
  8. 990
  9. 145
  10. 261
  11. 27
  12. 133
  13. 266
  14. 297
  15. 1078
  16. 290
  17. 735
  18. 2574
  19. 87
  20. 76
  21. 588
  22. 90
  23. 1683
  24. 135
  25. 245
  26. 2744
  27. 108
  28. 108
  29. 147
  30. 174
  31. 54
  32. 99
  33. 36
  34. 490
  35. 539
  36. 36
  37. 3861
  38. 228
  39. 2178
  40. 45

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