← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 657 · 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. 1.30 × 98 =
  2. 2.8 × 49 =
  3. 3.3 × 49 =
  4. 4.6 × 29 =
  5. 5.4 × 49 =
  6. 6.15 × 29 =
  7. 7.12 × 99 =
  8. 8.7 × 99 =
  9. 9.4 × 98 =
  10. 10.12 × 9 =
  11. 11.31 × 99 =
  12. 12.10 × 19 =
  13. 13.27 × 98 =
  14. 14.12 × 19 =
  15. 15.8 × 9 =
  16. 16.5 × 9 =
  17. 17.34 × 99 =
  18. 18.3 × 29 =
  19. 19.7 × 29 =
  20. 20.14 × 19 =
  21. 21.6 × 29 =
  22. 22.8 × 98 =
  23. 23.15 × 49 =
  24. 24.4 × 19 =
  25. 25.6 × 49 =
  26. 26.11 × 29 =
  27. 27.26 × 98 =
  28. 28.11 × 19 =
  29. 29.9 × 99 =
  30. 30.29 × 98 =
  31. 31.5 × 99 =
  32. 32.6 × 29 =
  33. 33.9 × 19 =
  34. 34.6 × 29 =
  35. 35.3 × 9 =
  36. 36.11 × 49 =
  37. 37.31 × 98 =
  38. 38.5 × 29 =
  39. 39.6 × 19 =
  40. 40.15 × 29 =

Answer key

  1. 2940
  2. 392
  3. 147
  4. 174
  5. 196
  6. 435
  7. 1188
  8. 693
  9. 392
  10. 108
  11. 3069
  12. 190
  13. 2646
  14. 228
  15. 72
  16. 45
  17. 3366
  18. 87
  19. 203
  20. 266
  21. 174
  22. 784
  23. 735
  24. 76
  25. 294
  26. 319
  27. 2548
  28. 209
  29. 891
  30. 2842
  31. 495
  32. 174
  33. 171
  34. 174
  35. 27
  36. 539
  37. 3038
  38. 145
  39. 114
  40. 435

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