← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 575 · 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. 1.3 × 29 =
  2. 2.3 × 9 =
  3. 3.8 × 19 =
  4. 4.31 × 98 =
  5. 5.3 × 19 =
  6. 6.10 × 49 =
  7. 7.13 × 19 =
  8. 8.13 × 99 =
  9. 9.9 × 98 =
  10. 10.31 × 99 =
  11. 11.37 × 99 =
  12. 12.3 × 19 =
  13. 13.9 × 9 =
  14. 14.4 × 9 =
  15. 15.4 × 9 =
  16. 16.4 × 19 =
  17. 17.10 × 49 =
  18. 18.14 × 49 =
  19. 19.17 × 99 =
  20. 20.14 × 9 =
  21. 21.8 × 98 =
  22. 22.12 × 29 =
  23. 23.14 × 49 =
  24. 24.7 × 49 =
  25. 25.14 × 19 =
  26. 26.3 × 29 =
  27. 27.22 × 99 =
  28. 28.5 × 19 =
  29. 29.3 × 98 =
  30. 30.6 × 99 =
  31. 31.5 × 29 =
  32. 32.9 × 29 =
  33. 33.4 × 29 =
  34. 34.8 × 9 =
  35. 35.5 × 9 =
  36. 36.15 × 49 =
  37. 37.10 × 19 =
  38. 38.11 × 9 =
  39. 39.31 × 98 =
  40. 40.31 × 98 =

Answer key

  1. 87
  2. 27
  3. 152
  4. 3038
  5. 57
  6. 490
  7. 247
  8. 1287
  9. 882
  10. 3069
  11. 3663
  12. 57
  13. 81
  14. 36
  15. 36
  16. 76
  17. 490
  18. 686
  19. 1683
  20. 126
  21. 784
  22. 348
  23. 686
  24. 343
  25. 266
  26. 87
  27. 2178
  28. 95
  29. 294
  30. 594
  31. 145
  32. 261
  33. 116
  34. 72
  35. 45
  36. 735
  37. 190
  38. 99
  39. 3038
  40. 3038

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