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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 980 · 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 × 98 =
  2. 2.12 × 49 =
  3. 3.3 × 9 =
  4. 4.5 × 19 =
  5. 5.17 × 98 =
  6. 6.3 × 19 =
  7. 7.7 × 9 =
  8. 8.18 × 98 =
  9. 9.15 × 9 =
  10. 10.14 × 49 =
  11. 11.7 × 29 =
  12. 12.10 × 9 =
  13. 13.12 × 9 =
  14. 14.13 × 29 =
  15. 15.10 × 29 =
  16. 16.11 × 49 =
  17. 17.5 × 19 =
  18. 18.40 × 98 =
  19. 19.16 × 98 =
  20. 20.8 × 9 =
  21. 21.12 × 19 =
  22. 22.5 × 99 =
  23. 23.12 × 49 =
  24. 24.3 × 19 =
  25. 25.11 × 9 =
  26. 26.15 × 29 =
  27. 27.11 × 49 =
  28. 28.37 × 98 =
  29. 29.5 × 19 =
  30. 30.7 × 19 =
  31. 31.30 × 98 =
  32. 32.13 × 29 =
  33. 33.8 × 29 =
  34. 34.14 × 29 =
  35. 35.9 × 9 =
  36. 36.13 × 9 =
  37. 37.4 × 29 =
  38. 38.5 × 99 =
  39. 39.33 × 98 =
  40. 40.14 × 99 =

Answer key

  1. 1372
  2. 588
  3. 27
  4. 95
  5. 1666
  6. 57
  7. 63
  8. 1764
  9. 135
  10. 686
  11. 203
  12. 90
  13. 108
  14. 377
  15. 290
  16. 539
  17. 95
  18. 3920
  19. 1568
  20. 72
  21. 228
  22. 495
  23. 588
  24. 57
  25. 99
  26. 435
  27. 539
  28. 3626
  29. 95
  30. 133
  31. 2940
  32. 377
  33. 232
  34. 406
  35. 81
  36. 117
  37. 116
  38. 495
  39. 3234
  40. 1386

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