← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 400 · 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. 1.17 × 99 =
  2. 2.5 × 29 =
  3. 3.13 × 29 =
  4. 4.10 × 29 =
  5. 5.8 × 9 =
  6. 6.3 × 99 =
  7. 7.13 × 98 =
  8. 8.14 × 19 =
  9. 9.13 × 49 =
  10. 10.7 × 99 =
  11. 11.7 × 19 =
  12. 12.3 × 9 =
  13. 13.5 × 99 =
  14. 14.4 × 49 =
  15. 15.14 × 98 =
  16. 16.11 × 9 =
  17. 17.5 × 9 =
  18. 18.4 × 98 =
  19. 19.15 × 29 =
  20. 20.15 × 19 =
  21. 21.10 × 9 =
  22. 22.8 × 98 =
  23. 23.7 × 19 =
  24. 24.11 × 98 =
  25. 25.6 × 29 =
  26. 26.14 × 9 =
  27. 27.7 × 29 =
  28. 28.7 × 98 =
  29. 29.39 × 99 =
  30. 30.6 × 19 =
  31. 31.14 × 49 =
  32. 32.32 × 98 =
  33. 33.11 × 49 =
  34. 34.16 × 98 =
  35. 35.5 × 29 =
  36. 36.20 × 98 =
  37. 37.6 × 9 =
  38. 38.26 × 99 =
  39. 39.7 × 19 =
  40. 40.30 × 99 =

Answer key

  1. 1683
  2. 145
  3. 377
  4. 290
  5. 72
  6. 297
  7. 1274
  8. 266
  9. 637
  10. 693
  11. 133
  12. 27
  13. 495
  14. 196
  15. 1372
  16. 99
  17. 45
  18. 392
  19. 435
  20. 285
  21. 90
  22. 784
  23. 133
  24. 1078
  25. 174
  26. 126
  27. 203
  28. 686
  29. 3861
  30. 114
  31. 686
  32. 3136
  33. 539
  34. 1568
  35. 145
  36. 1960
  37. 54
  38. 2574
  39. 133
  40. 2970

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