← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 481 · 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. 1.8 × 98 =
  2. 2.6 × 19 =
  3. 3.7 × 49 =
  4. 4.37 × 99 =
  5. 5.10 × 29 =
  6. 6.12 × 49 =
  7. 7.10 × 49 =
  8. 8.15 × 19 =
  9. 9.36 × 98 =
  10. 10.3 × 29 =
  11. 11.7 × 99 =
  12. 12.9 × 49 =
  13. 13.13 × 29 =
  14. 14.10 × 19 =
  15. 15.5 × 29 =
  16. 16.5 × 49 =
  17. 17.13 × 9 =
  18. 18.23 × 99 =
  19. 19.4 × 19 =
  20. 20.40 × 98 =
  21. 21.39 × 98 =
  22. 22.5 × 49 =
  23. 23.7 × 49 =
  24. 24.10 × 49 =
  25. 25.6 × 19 =
  26. 26.34 × 98 =
  27. 27.15 × 29 =
  28. 28.7 × 49 =
  29. 29.9 × 98 =
  30. 30.14 × 98 =
  31. 31.14 × 19 =
  32. 32.15 × 98 =
  33. 33.14 × 29 =
  34. 34.3 × 19 =
  35. 35.8 × 19 =
  36. 36.7 × 19 =
  37. 37.9 × 19 =
  38. 38.4 × 49 =
  39. 39.10 × 9 =
  40. 40.3 × 19 =

Answer key

  1. 784
  2. 114
  3. 343
  4. 3663
  5. 290
  6. 588
  7. 490
  8. 285
  9. 3528
  10. 87
  11. 693
  12. 441
  13. 377
  14. 190
  15. 145
  16. 245
  17. 117
  18. 2277
  19. 76
  20. 3920
  21. 3822
  22. 245
  23. 343
  24. 490
  25. 114
  26. 3332
  27. 435
  28. 343
  29. 882
  30. 1372
  31. 266
  32. 1470
  33. 406
  34. 57
  35. 152
  36. 133
  37. 171
  38. 196
  39. 90
  40. 57

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