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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 922 · 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. 1.14 × 49 =
  2. 2.6 × 19 =
  3. 3.8 × 49 =
  4. 4.4 × 29 =
  5. 5.7 × 9 =
  6. 6.7 × 9 =
  7. 7.18 × 99 =
  8. 8.8 × 9 =
  9. 9.10 × 9 =
  10. 10.40 × 99 =
  11. 11.11 × 19 =
  12. 12.8 × 9 =
  13. 13.9 × 49 =
  14. 14.23 × 99 =
  15. 15.10 × 19 =
  16. 16.8 × 9 =
  17. 17.24 × 99 =
  18. 18.3 × 9 =
  19. 19.13 × 99 =
  20. 20.12 × 29 =
  21. 21.33 × 98 =
  22. 22.3 × 19 =
  23. 23.37 × 98 =
  24. 24.14 × 49 =
  25. 25.14 × 49 =
  26. 26.29 × 98 =
  27. 27.5 × 19 =
  28. 28.12 × 9 =
  29. 29.4 × 19 =
  30. 30.36 × 99 =
  31. 31.24 × 99 =
  32. 32.33 × 99 =
  33. 33.4 × 19 =
  34. 34.11 × 49 =
  35. 35.23 × 98 =
  36. 36.33 × 98 =
  37. 37.10 × 19 =
  38. 38.5 × 9 =
  39. 39.8 × 19 =
  40. 40.11 × 9 =

Answer key

  1. 686
  2. 114
  3. 392
  4. 116
  5. 63
  6. 63
  7. 1782
  8. 72
  9. 90
  10. 3960
  11. 209
  12. 72
  13. 441
  14. 2277
  15. 190
  16. 72
  17. 2376
  18. 27
  19. 1287
  20. 348
  21. 3234
  22. 57
  23. 3626
  24. 686
  25. 686
  26. 2842
  27. 95
  28. 108
  29. 76
  30. 3564
  31. 2376
  32. 3267
  33. 76
  34. 539
  35. 2254
  36. 3234
  37. 190
  38. 45
  39. 152
  40. 99

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