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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 876 · 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. 1.7 × 19 =
  2. 2.3 × 98 =
  3. 3.24 × 99 =
  4. 4.3 × 29 =
  5. 5.9 × 19 =
  6. 6.7 × 9 =
  7. 7.7 × 49 =
  8. 8.13 × 29 =
  9. 9.8 × 9 =
  10. 10.38 × 99 =
  11. 11.7 × 29 =
  12. 12.13 × 99 =
  13. 13.15 × 49 =
  14. 14.3 × 99 =
  15. 15.7 × 19 =
  16. 16.7 × 29 =
  17. 17.4 × 29 =
  18. 18.15 × 9 =
  19. 19.7 × 99 =
  20. 20.16 × 99 =
  21. 21.28 × 99 =
  22. 22.6 × 9 =
  23. 23.5 × 19 =
  24. 24.11 × 98 =
  25. 25.9 × 49 =
  26. 26.8 × 19 =
  27. 27.10 × 29 =
  28. 28.13 × 49 =
  29. 29.14 × 49 =
  30. 30.11 × 9 =
  31. 31.24 × 98 =
  32. 32.32 × 98 =
  33. 33.4 × 19 =
  34. 34.14 × 29 =
  35. 35.6 × 29 =
  36. 36.4 × 29 =
  37. 37.13 × 29 =
  38. 38.37 × 98 =
  39. 39.16 × 99 =
  40. 40.13 × 19 =

Answer key

  1. 133
  2. 294
  3. 2376
  4. 87
  5. 171
  6. 63
  7. 343
  8. 377
  9. 72
  10. 3762
  11. 203
  12. 1287
  13. 735
  14. 297
  15. 133
  16. 203
  17. 116
  18. 135
  19. 693
  20. 1584
  21. 2772
  22. 54
  23. 95
  24. 1078
  25. 441
  26. 152
  27. 290
  28. 637
  29. 686
  30. 99
  31. 2352
  32. 3136
  33. 76
  34. 406
  35. 174
  36. 116
  37. 377
  38. 3626
  39. 1584
  40. 247

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