← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 800 · 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. 1.12 × 9 =
  2. 2.14 × 49 =
  3. 3.7 × 49 =
  4. 4.22 × 98 =
  5. 5.6 × 19 =
  6. 6.4 × 19 =
  7. 7.15 × 49 =
  8. 8.3 × 19 =
  9. 9.15 × 19 =
  10. 10.9 × 98 =
  11. 11.3 × 19 =
  12. 12.10 × 29 =
  13. 13.8 × 9 =
  14. 14.12 × 9 =
  15. 15.5 × 29 =
  16. 16.13 × 19 =
  17. 17.4 × 9 =
  18. 18.20 × 98 =
  19. 19.6 × 49 =
  20. 20.15 × 99 =
  21. 21.12 × 9 =
  22. 22.32 × 98 =
  23. 23.9 × 9 =
  24. 24.27 × 98 =
  25. 25.17 × 99 =
  26. 26.13 × 19 =
  27. 27.21 × 99 =
  28. 28.27 × 98 =
  29. 29.13 × 49 =
  30. 30.40 × 98 =
  31. 31.11 × 19 =
  32. 32.4 × 29 =
  33. 33.11 × 49 =
  34. 34.15 × 99 =
  35. 35.8 × 19 =
  36. 36.14 × 49 =
  37. 37.13 × 29 =
  38. 38.4 × 29 =
  39. 39.12 × 9 =
  40. 40.20 × 98 =

Answer key

  1. 108
  2. 686
  3. 343
  4. 2156
  5. 114
  6. 76
  7. 735
  8. 57
  9. 285
  10. 882
  11. 57
  12. 290
  13. 72
  14. 108
  15. 145
  16. 247
  17. 36
  18. 1960
  19. 294
  20. 1485
  21. 108
  22. 3136
  23. 81
  24. 2646
  25. 1683
  26. 247
  27. 2079
  28. 2646
  29. 637
  30. 3920
  31. 209
  32. 116
  33. 539
  34. 1485
  35. 152
  36. 686
  37. 377
  38. 116
  39. 108
  40. 1960

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