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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 703 · 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. 1.11 × 9 =
  2. 2.14 × 29 =
  3. 3.3 × 29 =
  4. 4.6 × 9 =
  5. 5.8 × 9 =
  6. 6.15 × 9 =
  7. 7.9 × 9 =
  8. 8.4 × 99 =
  9. 9.11 × 29 =
  10. 10.15 × 29 =
  11. 11.39 × 98 =
  12. 12.7 × 19 =
  13. 13.12 × 49 =
  14. 14.15 × 9 =
  15. 15.3 × 49 =
  16. 16.10 × 9 =
  17. 17.12 × 9 =
  18. 18.16 × 99 =
  19. 19.13 × 9 =
  20. 20.23 × 99 =
  21. 21.7 × 49 =
  22. 22.4 × 9 =
  23. 23.7 × 9 =
  24. 24.11 × 19 =
  25. 25.6 × 98 =
  26. 26.15 × 49 =
  27. 27.11 × 49 =
  28. 28.36 × 99 =
  29. 29.11 × 19 =
  30. 30.3 × 19 =
  31. 31.12 × 19 =
  32. 32.9 × 19 =
  33. 33.4 × 19 =
  34. 34.15 × 19 =
  35. 35.23 × 99 =
  36. 36.37 × 98 =
  37. 37.11 × 19 =
  38. 38.13 × 29 =
  39. 39.3 × 99 =
  40. 40.5 × 29 =

Answer key

  1. 99
  2. 406
  3. 87
  4. 54
  5. 72
  6. 135
  7. 81
  8. 396
  9. 319
  10. 435
  11. 3822
  12. 133
  13. 588
  14. 135
  15. 147
  16. 90
  17. 108
  18. 1584
  19. 117
  20. 2277
  21. 343
  22. 36
  23. 63
  24. 209
  25. 588
  26. 735
  27. 539
  28. 3564
  29. 209
  30. 57
  31. 228
  32. 171
  33. 76
  34. 285
  35. 2277
  36. 3626
  37. 209
  38. 377
  39. 297
  40. 145

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