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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 717 · 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. 1.3 × 49 =
  2. 2.15 × 9 =
  3. 3.3 × 49 =
  4. 4.4 × 98 =
  5. 5.12 × 9 =
  6. 6.6 × 49 =
  7. 7.13 × 29 =
  8. 8.12 × 29 =
  9. 9.36 × 98 =
  10. 10.37 × 99 =
  11. 11.4 × 29 =
  12. 12.7 × 9 =
  13. 13.7 × 49 =
  14. 14.8 × 9 =
  15. 15.7 × 9 =
  16. 16.38 × 98 =
  17. 17.3 × 99 =
  18. 18.40 × 99 =
  19. 19.5 × 99 =
  20. 20.7 × 99 =
  21. 21.9 × 19 =
  22. 22.4 × 98 =
  23. 23.14 × 98 =
  24. 24.5 × 99 =
  25. 25.7 × 29 =
  26. 26.14 × 49 =
  27. 27.13 × 49 =
  28. 28.3 × 99 =
  29. 29.14 × 9 =
  30. 30.15 × 29 =
  31. 31.13 × 29 =
  32. 32.3 × 49 =
  33. 33.33 × 99 =
  34. 34.3 × 99 =
  35. 35.3 × 98 =
  36. 36.9 × 29 =
  37. 37.4 × 98 =
  38. 38.3 × 98 =
  39. 39.6 × 9 =
  40. 40.6 × 9 =

Answer key

  1. 147
  2. 135
  3. 147
  4. 392
  5. 108
  6. 294
  7. 377
  8. 348
  9. 3528
  10. 3663
  11. 116
  12. 63
  13. 343
  14. 72
  15. 63
  16. 3724
  17. 297
  18. 3960
  19. 495
  20. 693
  21. 171
  22. 392
  23. 1372
  24. 495
  25. 203
  26. 686
  27. 637
  28. 297
  29. 126
  30. 435
  31. 377
  32. 147
  33. 3267
  34. 297
  35. 294
  36. 261
  37. 392
  38. 294
  39. 54
  40. 54

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