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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 873 · 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. 1.35 × 99 =
  2. 2.4 × 9 =
  3. 3.6 × 29 =
  4. 4.11 × 29 =
  5. 5.3 × 9 =
  6. 6.5 × 29 =
  7. 7.18 × 99 =
  8. 8.12 × 19 =
  9. 9.4 × 9 =
  10. 10.6 × 49 =
  11. 11.6 × 29 =
  12. 12.6 × 9 =
  13. 13.13 × 9 =
  14. 14.15 × 19 =
  15. 15.6 × 29 =
  16. 16.37 × 98 =
  17. 17.15 × 29 =
  18. 18.29 × 99 =
  19. 19.12 × 9 =
  20. 20.4 × 49 =
  21. 21.15 × 98 =
  22. 22.15 × 19 =
  23. 23.4 × 49 =
  24. 24.4 × 29 =
  25. 25.8 × 9 =
  26. 26.4 × 19 =
  27. 27.8 × 99 =
  28. 28.6 × 9 =
  29. 29.15 × 49 =
  30. 30.7 × 99 =
  31. 31.3 × 19 =
  32. 32.5 × 9 =
  33. 33.39 × 99 =
  34. 34.4 × 19 =
  35. 35.7 × 49 =
  36. 36.5 × 19 =
  37. 37.10 × 98 =
  38. 38.4 × 99 =
  39. 39.12 × 49 =
  40. 40.13 × 9 =

Answer key

  1. 3465
  2. 36
  3. 174
  4. 319
  5. 27
  6. 145
  7. 1782
  8. 228
  9. 36
  10. 294
  11. 174
  12. 54
  13. 117
  14. 285
  15. 174
  16. 3626
  17. 435
  18. 2871
  19. 108
  20. 196
  21. 1470
  22. 285
  23. 196
  24. 116
  25. 72
  26. 76
  27. 792
  28. 54
  29. 735
  30. 693
  31. 57
  32. 45
  33. 3861
  34. 76
  35. 343
  36. 95
  37. 980
  38. 396
  39. 588
  40. 117

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